The OHDSI community has published more than 900 studies over more than a decade, and lead authors from four different recent publications joined the Dec. 2 community call to briefly present their study.

Ágota Mészáros • PhD Student, Semmelweis University 
Semiautomatic mapping of a national drug terminology to standardised OMOP drug concepts using publicly available supplementary information (BMC Medical Research Methodology)

Marta Pineda Moncusí • Postdoctoral Researcher in Health Data, University of Oxford
Changes in use and utilisation patterns of drugs with reported shortages between 2010 and 2024 in Europe and North America: a network cohort study (The Lancet Public Health)

Lucía Bellas • Real World Evidence Epidemiologist, IMI_EHDEN
Secular Trends in the Use of Valproate-Containing Medicines in Women of Childbearing Age in Europe: A Multinational DARWIN EU Network Study (Pharmacoepidemiology & Drug Safety)

Hanieh Razzaghi • Associate Director, PEDSnet Data Coordinating Center
A multifaceted approach to advancing data quality and fitness standards in multi-institutional networks (JAMIA)

Community Updates

• Congratulations to the team of Gyu Lee Kim, Yu Hyeon Yi, Jeong Gyu Lee, Young Jin Tak, Seung Hun Lee, Young Jin Ra, Byung Kwan Choi, Sang Yeoup Lee, Young Hye Cho, Eun Ju Park, Youngin Lee, Jung In Choi, Sae Rom Lee, Ryuk Jun Kwon, and Soo Min Son on the recent publication of Association Between the Use of DPP4 Inhibitors and Metformin and the Risk of Cancer in Patients with Type 2 Diabetes: A Multicenter Retrospective Cohort Study Using the OMOP CDM Database in Cancers.

• The 12th annual OHDSI Global Symposium will return to the Hyatt Regency Hotel in New Brunswick, N.J., Oct. 20-22, 2026. All pertinent information will be added to this page when available. Currently, the OHDSI steering group is seeking proposals for both plenaries and tutorials. The deadline for both is January 30, 2026; more details are available on the event homepage.

• The December edition of the OHDSI newsletter is now available. This includes information on five in-person OHDSI events across four continents that are taking place over the last two months of the year, as well as recent community updates, recent publications and presentations, and plenty more.

• Hua Xu is a well-known researcher in clinical natural language processing (NLP), and he leads the OHDSI NLP workgroup. He has developed novel algorithms for important clinical NLP tasks such as entity recognition and relation extraction, which have been top ranked in over a dozen of international biomedical NLP challenges. His lab has developed CLAMP, a comprehensive clinical NLP toolkit that has been successfully commercialized and used by hundreds of healthcare organizations. In the latest OHDSI Collaborator Spotlight, Hua reflects on his career journey, work being done at Yale, how NLP impacts the OHDSI mission of generating real-world evidence that impacts healthcare, and more.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, including all six tutorials from the recent Global Symposium.

• The latest “On The Journey” annual report is now on the OHDSI homepage. This 134-page PDF provides an overview of the OHDSI community, including a look at its collaborators and collaborative activities, its research areas and tools, its work with standardized data and vocabularies, and nearly 900 publications that have come from the community.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• Early-bird registration is open for the Oxford Summer School 2026: Real World Evidence using the OMOP Common Data Model, which will also be held June 22-26. This Real World Evidence Summer School will provide participants with the tools and concepts necessary to plan and execute Real World Evidence studies, with a focus on the use of the OMOP common data model. The course will have morning lectures followed by afternoon practicals where concepts discussed in the morning will be put in practice with hands-on sessions.

Save The Dates

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.
• The 2026 OHDSI Europe Symposium will be held April 18-20 in Rotterdam, Netherlands. While registration has not opened yet, the deadline for abstract submissions is Feb. 6, 2026.
• The 2026 OHDSI Global Symposium will be held Oct. 20-22 at the Hyatt Regency Hotel in New Brunswick, N.J.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — AI-Driven Precision: Semantic Search and Smart LLM Reranking for Mapping Croatian Medical Concepts to OMOP-CDM (Karlo Pintarić)
Tuesday — edenceMapper: Mapping Suggestion Framework for Non-Standard to Standard Codes (Freija Descamps)
Wednesday — Federated Platform for Clinical Data Mediation: Enhancing Interoperability with OMOP and NLP (Mónica Arrúe)
Thursday — OHDSI-in-a-File: A Self-Contained Browser-Based Notebook for Research (Pedro Campos)
Friday — Searching the HMA-EMA Real-World Data Catalogues: Insights into Common Data Models (Elpida Kontsioti)

Slides

Meszaros | Moncusi | Bellas | Razzaghi | Community Updates

Video Presentations

Semiautomatic mapping of a national drug terminology to standardised OMOP drug concepts using publicly available supplementary information (Ágota Mészáros)

Changes in use and utilisation patterns of drugs with reported shortages between 2010 and 2024 in Europe and North America: a network cohort study (Marta Pineda Moncusí)

Secular Trends in the Use of Valproate-Containing Medicines in Women of Childbearing Age in Europe: A Multinational DARWIN EU Network Study (Lucia Bellas)

A multifaceted approach to advancing data quality and fitness standards in multi-institutional networks (Hanieh Razzaghi)

The Nov. 25 community call spotlighted our early-stage researchers. Leaders from the Early-Stage Researcher Workgroup—Harry Reyes Nieva, Benjamin Martin and Shounak Chattopadhyay—opened by sharing their mission, priorities, and new opportunities to get involved. Afterwards, leads from the three Global Symposium presentations that earned top evaluations among early-stage researcher submissions presented their work:

• Sumin Lee and Kyulee Jeon (Yonsei College of Medicine)
ARKE: An Ontology-Driven Framework for Standardizing Radiology Procedure Terminology Using LLMs and RAG

• Markian Hromiak and Jacob Zelko (George Institute of Technology)
Exploring Efficient and Scalable OMOP CDM Workflows by Leveraging dbt-synthea

• Bingyu Zhang (University of Pennsylvania)
The Fine Art of Tolerance: Robustify p-value Calibration in Observational Studies with Partially Valid Negative Control Outcomes

Community Updates

• Congratulations to the team of Pablo Guerrero, Morten Ernebjerg, Thomas Holst, David Weese, Herve DiBello, Susanne Ibing, Linea Schmidt, Ryan Ungaro, Bernhard Renard, Christoph Lippert, Eugenia Alleva, Timothy David Quinn, Patricia Kovatch, Esther-Maria Antao, Elmien Heyneke, Aadil Rasheed, Stefan Kalabakov, Bert Arnrich, Alexander Charney, Lothar H Wieler, and Girish Nadkarni on the recent publication of The AIR·MS data platform for artificial intelligence in healthcare in JAMIA Open.

• Congratulations to the team of Meredith Adams, Robert Hurley, Karsten Bartels, Matthew Perkins, Cody Hudson, Umit Topaloglu, J Perren Cobb, Karin Reuter-Rice, Jacqueline Stocking, and Ashish Khanna on the recent publication of Extending the Observational Medical Outcomes Partnership (OMOP) Common Data Model for Critical Care Medicine: A Framework for Standardizing Complex ICU Data Using the Society of Critical Care Medicine’s Critical Care Data Dictionary (C2D2) in Critical Care Medicine.

• The 12th annual OHDSI Global Symposium will return to the Hyatt Regency Hotel in New Brunswick, N.J., Oct. 20-22, 2026. All pertinent information will be added to this page when available. Currently, the OHDSI steering group is seeking proposals for both plenaries and tutorials. The deadline for both is January 30, 2026; more details are available on the event homepage.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, including all six tutorials from the recent Global Symposium.

• The latest “On The Journey” annual report is now on the OHDSI homepage. This 134-page PDF provides an overview of the OHDSI community, including a look at its collaborators and collaborative activities, its research areas and tools, its work with standardized data and vocabularies, and nearly 900 publications that have come from the community.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

Save The Dates

• The 2025 OHDSI India Symposium will be held Dec. 2 at SVM Hospitals in Bangalore. The registration link and more information, including the symposium agenda, is now available.
• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.
• The 2026 OHDSI Europe Symposium will be held April 18-20 in Rotterdam, Netherlands. While registration has not opened yet, the deadline for abstract submissions is Feb. 6, 2026.
• The 2026 OHDSI Global Symposium will be held Oct. 20-22 at the Hyatt Regency Hotel in New Brunswick, N.J.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — The potential of LLMs for multilingual NER in clinical notes (Sara Mazzucato)
Tuesday — An Iterative LLM Based Pipeline for Extracting Clinical Data from Medical Records (Erik Calcina)
Wednesday — Facilitating OHDSI ATLAS Cohort creation via a Custom ChatGPT: a preliminary evaluation based on system instructions and file uploads model (Miguel Angel-Mayer)
Thursday — Using OHDSI Usagi as a validation tool after LLM translation and auto-mapping of standard procedure classifications from different health systems (Karen Triep)
Friday — Expanding the Semmelweis Clinical Database with parameters extracted from free text documents using large language models (Zsolt Bagyura)        

Slides

Introduction to the Early-Stage Researcher Workgroup | ARKE | Fine Art of Tolerance | Community Updates

Video Presentations

Early-Stage Researcher Workgroup Introduction
ARKE: An Ontology-Driven Framework for Standardizing Radiology Procedure Terminology Using LLMs and RAG
Exploring Efficient and Scalable OMOP CDM Workflows by Leveraging dbt-synthea
The Fine Art of Tolerance: Robustify p-value Calibration in Observational Studies with Partially Valid Negative Control Outcomes

The Nov. 18 community call provided an update on the DARWIN EU® Initiative. DARWIN EU, recipient of the 2025 Titan Award for Clinical Applications, is a European Medicines Agency–led network that uses real-world healthcare data across Europe to generate evidence on how medicines are used, how safe and effective they are, and to support regulatory decision-making. DARWIN-EU is led by numerous OHDSI community members and uses both the OMOP CDM and OHDSI tools to generate reliable real-world evidence.

This presentation was led by Peter Rijnbeek, Katie Verhamme and Maxim Moinat. 

Community Updates

• Congratulations to the team of Berta Cuyàs, Edilmar Alvarado-Tapias, Eng Hooi Tan, Asieh Golozar, Talita Duarte-Salles, Antonella Delmestri, Josepmaria Argemi, Wai Yi Man, Edward Burn, Carlos Guarner-Argente, Daniel Prieto Alhambra, and Danielle Newby on the recent publication of Trends in incidence, prevalence, and survival of primary liver cancer in the United Kingdom (2000–2021) in the European Journal of Public Health.

• Congratulations to the team of Melissa Finster, Markus Wenzel and Elham Taghizadeh on the recent publication of Common data models and data standards for tabular health data: a systematic review in BMC Medical Informatics and Decision Making.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, including all six tutorials from the recent Global Symposium.

• The latest “On The Journey” annual report is now on the OHDSI homepage. This 134-page PDF provides an overview of the OHDSI community, including a look at its collaborators and collaborative activities, its research areas and tools, its work with standardized data and vocabularies, and nearly 900 publications that have come from the community.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

Save The Dates

• The 2025 OHDSI India Symposium will be held Dec. 2 at SVM Hospitals in Bangalore, and registration is now open. More details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and a full agenda is now available on the event homepage.

• The 2026 OHDSI Global Symposium will be held Oct. 20-22 at the Hyatt Regency Hotel in New Brunswick, N.J. More details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — PREPARE-Rehab: Personalized rehabilitation via novel AI patient stratification strategies using the OMOP-CDM standard (Carlotte Kiekens)
Tuesday — Transforming clinical data from innovative European Cancer Precision Medicine projects: The PRIME-ROSE Example (Maria Martin Agudo)
Wednesday — Advancing Epidemiological Research in Africa: Federated Infrastructure, Data Harmonization, and Knowledge Transfer for Scalable Public Health Insights – Technical contribution of the BRIDGE NETWORK project (Emma Gesquiere)
Thursday — Developing a strategy for the standardisation of Cancer Research UK funded data (Jasmine Handford)
Friday —RAG-Enhanced LLM Pipeline for Semantic Mapping of Context-based Features to OMOP Vocabulary (Sariga Kakkamani)

Slides

Community Updates

Video Presentations

DARWIN EU® Initiative Update

The Nov. 11 community call welcomes the leads from five software demos to present their work from the 2025 Global Symposium. 

• Adil Ahmed (Senior Machine Learning Engineer, Montefiore)
Automated OMOP Concept Mapping Using Multi-Agent Large Language Models and Graph-Enhanced Semantic Retrieval

• Ioanna Nika (Data Scientist, Erasmus MC)
DarwinBenchmark: Evaluating cohort generation and analytics in OMOP CDM databases

• Cameron Atkins (Software Developer, Johnson & Johnson)
Enhancing Empirical Comparator Recommendations with User Specified Weights: Approach and Assessment

• Katy Sadowski (Senior Associate Director, Real World Evidence Analytics, Boehringer Ingelheim)
dqdbt: Continuous Data Quality Testing for OMOP ETL with dbt

• Robert Barrett (Research Assistant, Johns Hopkins University)
ExCITE: A Containerized Open-Source Platform Integrating EHR, FHIR, and OMOP for Biomedical Informatics Education

Community Updates

• Congratulations to the team of Cindy Xinji Cai, Akihiko Nishimura, Sally Baxter, Kerry Goetz, Michelle Hribar, Brian Toy, Andrew Barkmeier, Sophia Wang, Swarup Swaminathan, Alexis Flowers, Eric Brown, Benjamin Xu, John Chen, Aiyin Chen, Theodore Leng, Michael Boland, Thamir Alshammari, Fan Bu, Thomas Falconer, Benjamin Martin, Erik Westlund, Nestoras Mathioudakis, Linying Zhang, Ruochong Fan, Adam Wilcox, Albert Lai, Jacqueline Stocking, Yangyiran Xie, Lok Hin Lee, David Dorr, Izabelle Humes, David McCoy, Mohammad Adibuzzaman, Raymond Areaux Jr, James Brash, Nicole Weiskopf, Hannah Morgan-Cooper, Priya Desai, Diep Tran, Zainab Rustam, Gina Zhu, Joel Swerdel, Anthony Sena, Paul Nagy, Marc Suchard, Martijn Schuemie, George Hripcsak, and Patrick Ryan on the recent publication of Semaglutide and diabetic retinopathy: an OHDSI network study in BMJ Open Diabetes Research and Care.

• Congratulations to the team of Thomas Datzmann, Caroline Lang, Falko Tesch, Melissa Spoden, Patrik Dröge, Franz Ehm, Ekkehard Schuler, Christos Krogias, Christian Günster, Jochen Schmitt, Christoph Gumbinger, and Jessica Barlinn on the recent publication of Evaluation of hybrid stroke quality indicators by integrating NIHSS and claims data for improved outcome prediction in Scientific Reports.

• The first-ever 2025 OHDSI Africa Symposium is taking place Nov. 10-12 in Kampala, Uganda. Thank you to the OHDSI Africa leadership for their hard work to put on this inaugural event.

• The latest edition of the OHDSI newsletter is now available. This edition includes materials from the 2025 Global Symposium (videos, slides, posters), the 2025 edition of the Our Journey booklet, a collaborator spotlight Q&A with Andrew Kanter, recent community updates, publications and presentations from October, and plenty more.

• The latest “On The Journey” annual report is now on the OHDSI homepage. This 134-page PDF provides an overview of the OHDSI community, including a look at its collaborators and collaborative activities, its research areas and tools, its work with standardized data and vocabularies, and nearly 900 publications that have come from the community.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, as well as tutorials from the SOS Challenge. Future tutorials will also be added here.

Job Openings

• Erasmus MC recently posted job openings for both a Health Data Scientist and a PhD student in medical informatics. More details and an application link are available on the respective pages. The closing date for both positions is Nov. 17.

Save The Dates

• The 2025 OHDSI India Symposium will be held Dec. 2 at SVM Hospitals in Bangalore, and registration is now open. More details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and a full agenda is now available on the event homepage.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Leveraging OHDSI Tools for Advancing Federated Machine Learning in Clinical Prediction: Insights from the PREPARE project (Margarita Grammatikopoulou)
Tuesday — OHSIRIS – Open Health Data Space for Biomedical Research and development of Industrial Services based on OMOP (Alberto Moreno)
Wednesday — The birth of the Belgian FHIN-hospitals Industry Data Alliance (BELFHINDA) (Karen Crabbé)
Thursday — Harmonization of NAJS DWH to the OMOP CDM (Marko Čavlina)
Friday — Establishing the Health Data Research UK OMOP Network: HERON-UK (Alex Knight)

Slides

dqdbt Demo | Community Updates

Video Presentations

Automated OMOP Concept Mapping Using Multi-Agent Large Language Models and Graph-Enhanced Semantic Retrieval (Ahmed)
DarwinBenchmark: Evaluating cohort generation and analytics in OMOP CDM databases (Nika)
Enhancing Empirical Comparator Recommendations with User Specified Weights: Approach and Assessment (Atkins)
dqdbt: Continuous Data Quality Testing for OMOP ETL with dbt (Sadowski)
ExCITE: A Containerized Open-Source Platform Integrating EHR, FHIR, and OMOP for Biomedical Informatics Education (Barrett)

The Nov. 4 community call featured the winners of the Best Community Contribution Honors from the 2025 Global Symposium. Four lead authors presented the work that earned top recognition from their peers across the OHDSI community. 

Methods Research: Lu Li (University of Pennsylvania): LATTE: A One-shot Lossless Algorithm for Federated Target Trial Emulation with Application to Alzheimer’s Disease and Related Dementia Drug  Repurposing Using Decentralized Data

Community: Clair Blacketer (Johnson & Johnson): Building the OHDSI Evidence Network – A Global, Open, Federated Collaboration

Data Standards: Jared Houghtaling (Tufts University): OMOP Waveform Extension: A Schema for Integrating Physiological Signals and Derived Features into the OMOP CDM

Clinical Applications: Hsin Yi “Cindy” Chen (Columbia University): Heterogeneity of Treatment Effects Across Nine Glucose-Lowering Drug Classes in Type 2 Diabetes: Extension of the LEGEND-T2DM Network Study

Open-Source Development honoree Adil Ahmed will present his work the following week during the software demo session.

Community Updates

• Congratulations to the team of Sarah B. Floyd, Ashley Mills, Jason Woloff, Christian Lowson, Coleman Hilton, Donna Oeffinger, and Steven Hwang on the recent publication of Development and validation of a computable phenotype for adolescent idiopathic scoliosis in Learning Health Systems.

• Congratulations to the team of Han Chang Lim, Howard Wong, Reji Philip, Anton Van Der Vegt, Kim-Kwang Raymond Choo, Jason D. Pole, and Clair Sullivan on the recent publication of Streamlining electronic medical record data extraction and validation in digital hospitals: A systematic review to identify optimal approaches and methods in Learning Health Systems.

• Congratulations to the team of Gucheol Jung, JaeHyeok Lee, Sung-Min Gho, YoungMi Han, ByungKwan Choi, Jae Wook Cho, Jiyoung Kim, and Gha-hyun Lee on the recent publication of Predicting oxcarbazepine-induced hyponatremia in adult epilepsy patients: A multicenter machine learning analysis using real-world CDM data in Seizure: European Journal of Epilepsy.

• Congratulations to the team of Nadav Rappoport, Guy Livne, Naama Perry Cohen, Nir Makover, Hadas Eshel-Geva, Hadar Kapach, Tomer Hadad, Yarin Alon, Robyn Rubin, Segev Chai, Shirell da Villa, and Ohad Hochman on the recent publication of Kineret: Israel’s Largest Hospital Network Transformed into the OMOP common data model for collaborative research in PLOS One.

• The latest edition of the OHDSI newsletter is now available. This edition includes materials from the 2025 Global Symposium (videos, slides, posters), the 2025 edition of the Our Journey booklet, a collaborator spotlight Q&A with Andrew Kanter, recent community updates, publications and presentations from October, and plenty more.

• The latest “On The Journey” annual report is now on the OHDSI homepage. This 134-page PDF provides an overview of the OHDSI community, including a look at its collaborators and collaborative activities, its research areas and tools, its work with standardized data and vocabularies, and nearly 900 publications that have come from the community.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, as well as tutorials from the SOS Challenge. Future tutorials will also be added here.

• A scholarship honoring the late Jamie Weaver has been created at the University of Oxford, and applications are now being accepted. This 3-year PhD funded studentship will focus on ‘Improving the quality of real world evidence by measuring and minimising outcome misclassification using the OMOP common data model and large multinational health data,’ research that Weaver was leading during his time as a PhD trainee at Oxford. More information and application details are available here.

Job Openings

• Erasmus MC recently posted job openings for both a Health Data Scientist and a PhD student in medical informatics. More details and an application link are available on the respective pages. The closing date for both positions is Nov. 17.

Save The Dates

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — The DARWIN EU® Data Network (Maxim Moinat)
Tuesday — Incidence Rates of Suicidality Related Events in Patients with Chronic Skin Conditions of Acne and Psoriasis in the European Population (Marzyeh Amini)
Wednesday — Adoption of the OMOP CDM for Cancer Research: A prostate cancer use-case (Manos Hatzakis)
Thursday — Temporal and Regional Trends in Curative and Palliative Systemic Anticancer Treatments for Aging Populations: A Transatlantic Analysis of the Ten Most Incident Cancers (Linnea Schumann)
Friday — Amyloid Cardiomyopathy Community Uptake of Recommended Assessment and Testing Efforts (ACCURATE Study): A Large-Scale Data Analysis Using an Algorithm-Goes-to-Data (Clara Teixeira)

Slides

Community Updates

Video Presentations

OMOP Waveform Extension: A Schema for Integrating Physiological Signals and Derived Features into the OMOP CDM (Houghtaling)

LATTE: A One-shot Lossless Algorithm for Federated Target Trial Emulation with Application to Alzheimer’s Disease and Related Dementia Drug Repurposing Using Decentralized Data (Li)

Heterogeneity of Treatment Effects Across Nine Glucose-Lowering Drug Classes in Type 2 Diabetes: Extension of the LEGEND-T2DM Network Study (Chen)

Building the OHDSI Evidence Network – A Global, Open, Federated Collaboration (Blacketer)

The Oct. 28 community call introduced our 2025 Titan Award winners. Nominated and awarded by fellow community members, these collaborators did exceptional work to further OHDSI’s mission this year. We heard about their respective journeys and recent work during this session. The 2025 Titan Award winners were:

Data Standards: Polina Talapova
Methodological Research: Joel Swerdel
Open-Source Development: Jared Houghtaling, Aniek Markus, Maarten van Kessel
Clinical Applications: DARWIN EU Team
Community Collaboration: Liesbet Peeters, Ilse Vermeulen, Lotte Geys
Community Support: Agnes Kiragga
Community Leadership: Greg Klebanov

Community Updates

• Congratulations to the team of Hanieh Razzaghi, Kimberley Dickinson, Kaleigh Wieand, Samuel Boss, Hunter Weidlich, Yungui Huang, Keith Morse, Sujan Kumar Mutyala, Jyothi Priya Alekapatti Nandagopal, Karthik Viswanathan, Christopher B Forrest, and L Charles Bailey on the recent publication of A multifaceted approach to advancing data quality and fitness standards in multi-institutional networks in JAMIA.

• Congratulations to the team of Gerard Ompad, Carolyn E. Cesta, Jacqueline M. Cohen, Maarit K. Leinonen, Heidi Taipale, Huiqi Li, Lárus S. Guðmundsson, Mika Gissler, and Maurizio Sessa on the recent publication of Current Use of Common Data Models in the Nordic Countries in Pharmacoepidemiology and Drug Safety.

• Congratulations to Michael Matheny (VA, Vanderbilt) on his recent election as a new member of the National Academy of Medicine (NAM).

• Congratulations to Early-Stage Researchers Workgroup lead and recent Columbia PhD graduate Harry Reyes Nieva on being named a 2025 STAT Wunderkind, an award given to the top 30 early career scientists in North America.

• The latest “On The Journey” annual report is now on the OHDSI homepage. This 134-page PDF provides an overview of the OHDSI community, including a look at its collaborators and collaborative activities, its research areas and tools, its work with standardized data and vocabularies, and nearly 900 publications that have come from the community.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, as well as tutorials from the SOS Challenge. Future tutorials will also be added here.

• A scholarship honoring the late Jamie Weaver has been created at the University of Oxford, and applications are now being accepted. This 3-year PhD funded studentship will focus on ‘Improving the quality of real world evidence by measuring and minimising outcome misclassification using the OMOP common data model and large multinational health data,’ research that Weaver was leading during his time as a PhD trainee at Oxford. More information and application details are available here.

Save The Dates

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday —DARWIN EU® — Characterisation and survival of older adults with recurrent falls (Akram Mendez)
Tuesday — DARWIN EU® – Assessing Frailty and Polypharmacy in Oncology within OMOP Common Data Model: A Real-World Data Approach (Julieta Politi)
Wednesday — DARWIN EU® – Paracetamol prescribing and overdose: trends and patient characteristics (Berta Raventós)
Thursday — DARWIN EU® – Incidence of Myoclonus in Heart Failure: A Descriptive Analysis Using Consecutive Time-at-Risk Windows in Sacubitril/Valsartan and Other Heart Failure Treatment (Julieta Politi)
Friday — Data Quality Assessment for the DARWIN EU® Data Partner Network (Sofia Bazakou)

Slides

Community Updates

Video Presentation

Andrew Williams, a 2019 Titan Award winner who passed away in August, embodied the spirit of collaboration within OHDSI. As a multi-workgroup lead, connector, and fierce advocate for his colleagues, he showed us the power of working together. The OHDSI community came together during the Oct. 21 community call to honor Andrew’s memory and reflect on how we can carry forward his commitment to collaboration.

Community Updates

• Congratulations to the team of Kye Hwa Lee, Sujung Jang, Grace Juyun Kim, Sukyoung Park, Doeun Kim, Oh Jin Kwon, Jae-Ho Lee, and Young-Hak Kim on the recent publication of Large Language Models for Automating Clinical Trial Criteria Conversion to Observational Medical Outcomes Partnership Common Data Model Queries: Validation and Evaluation Study in JMIR Medical Informatics.

• Congratulations to the team of Lucía Bellas, Martí Català, Edward Burn, Yuchen Guo, Mike Du, Katia Verhamme, Egil Fridgeirsson, Talita Duarte-Salles, Tommi Kauko, Eeva Kronqvist, James T. Brash, Sarah Seager, Daniel Prieto-Alhambra, Annika M. Jödicke, and Albert Prats-Uribe on the recent publication of Secular Trends in the Use of Valproate-Containing Medicines in Women of Childbearing Age in Europe: A Multinational DARWIN EU Network Study in Pharmacoepidemiology and Drug Safety.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, as well as tutorials from the SOS Challenge. Future tutorials will also be added here.

• A scholarship honoring the late Jamie Weaver has been created at the University of Oxford, and applications are now being accepted. This 3-year PhD funded studentship will focus on ‘Improving the quality of real world evidence by measuring and minimising outcome misclassification using the OMOP common data model and large multinational health data,’ research that Weaver was leading during his time as a PhD trainee at Oxford. More information and application details are available here.

Save The Dates

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Data quality framework for cohort discovery: Insights from the design of the global WAYFIND-R oncology real-world data research platform (Tom Stone)
Tuesday — Development of the HEARTwise ML framework to predict patient deterioration (Frederick De Baene)
Wednesday — DARWIN EU® – Latest trends in use of Attention-Deficit Hyperactivity Disorder (ADHD) Medications among children and adult in five European countries (Xintong Li)
Thursday — DARWIN EU® – Prescription pattern of STOPP section K criteria medication in older adults with and without recurrent falls (Akram Mendez)
Friday — DARWIN EU® – Chondrosarcoma: patient demographics, treatments, and survival in the period 2010-2023 (Anton Barchuk)

Slides

Community Updates

Video Presentation

Tribute to Andrew Williams/The Power of Collaboration

During the Oct. 14 Community Call, Patrick Ryan provided a high-level overview of the OHDSI community and highlighted the numerous areas where global collaborators can get involved. Craig Sachson went through the web site and showed how and where people can begin their journey with OHDSI.

Community Updates

• Congratulations to the team of Raquel Paradinha, Vicente Barros, João Rafael Almeida, and José Luís Oliveira on the recent publication of A Semantic-Driven for Cohort Data Harmonisation into OMOP CDM Schema in Volume 332 of Studies in Health Technology and Informatics: Good Evaluation – Better Digital Health.

• Congratulations to the team of Somayeh Abedian, Eugene Yesakov, Stanislav Ostrovskiy, and Rada Hussein on the recent publication of Integrating Garmin Wearable Data into FHIR-Based Health Systems for Improved Interoperability in Volume 332 of Studies in Health Technology and Informatics: Good Evaluation – Better Digital Health.

• Congratulations to the team of Pawel Rajwa, Angelika Borkowetz, Thomas Abbott, Andrea Alberti, Katharina Beyer, Anders Bjartell, James T Brash, Andrew Chilelli, Eleanor Davies, Bertrand De Meulder, Tamas Fazekas, Asieh Golozar, Ayman Hijazy, Andreas Josefsson, Veeru Kasivisvanathan, Raivo Kolde, Daniel Kotik, Michael S Leapman, Marcin Miszczyk, Rossella Nicoletti, Peter Prinsen, Sebastiaan Remmers, Maria J Ribal, Juan Gómez Rivas, Lara Rodriguez-Sanchez, Monique J Roobol, Emma Smith, Robert Snijder, Carl Steinbeisser, Hein V Stroomberg, Giorgio Gandaglia, Philip Cornford, Susan Evans-Axelsson, James N’Dow, Peter-Paul M Willemse and the PIONEER Consortium on the recent publication of Observational Health Data Analysis of the Cardiovascular Adverse Events of Systemic Treatment in Patients with Metastatic Hormone-sensitive Prostate Cancer: Big Data Analytics Using the PIONEER Platform in European Urology Focus.

• Congratulations to the team of Parvaneh Badri, Ivonne Hernández, Justin Long, Maryam Amin, and Reid Friesen on the recent publication of Chronic orofacial pain and psychological distress: findings from a multidisciplinary university clinic in the Journal of Oral & Facial Pain and Headache.

• Congratulations to the team of Justin Bohn, James P. Gilbert, Christopher Knoll, David M. Kern and Patrick B. Ryan on the recent publication of Large-scale Empirical Identification of Candidate Comparators for Pharmacoepidemiological Studies in Drug Safety.

• Congratulations to our 2025 Titan Award winners, as announced during the Global Symposium!

Data Standards: Polina Talapova
Methodological Research: Joel Swerdel
Open-Source Development: Aniek Markus, Maarten van Kessel, Jared Houghtaling
Clinical Applications: DARWIN EU Team
Community Collaboration: Liesbet Peeters, Ilse Vermeulen, Lotte Geys
Community Support: Agnes Kiragga
Community Leadership: Greg Klebanov

• Congratulations to our 2025 Collaborator Showcase Best Community Contribution winners, as voted on at the Global Symposium!

Data Standards: OMOP Waveform Extension: A Schema for Integrating Physiological Signals and Derived Features into the OMOP CDM (Jared Houghtaling, Polina Talapova, Brian Gow, Manlik Kwong, Andrew J King, Benjamin Moody, Mike Kriley, Tom Pollard, Andrew E Williams)
Methodological Research: LATTE: A One-shot Lossless Algorithm for Federated Target Trial Emulation with Application to Alzheimer’s Disease and Related Dementia Drug  Repurposing Using Decentralized Data(Lu Li, Qiong Wu, Yiwen Lu, Kyra S. O’Brien, Bingyu Zhang, Ting Zhou, Jiayi Tong, Dazheng Zhang, Yuqing Lei, Huilin Tang, Yun Lu, David Asch, Yong Chen)
Open-Source Development: Automated OMOP Concept Mapping Using Multi-Agent Large Language Models and Graph-Enhanced Semantic Retrieval(Adil Ahmed, Selvin Soby, Boudewijn Aasman, Parsa Mirhaji)
Clinical Applications: Heterogeneity of Treatment Effects Across Nine Glucose-Lowering Drug Classes in Type 2 Diabetes: Extension of the LEGEND-T2DM Network Study (Hsin Yi “Cindy” Chen, Thomas Falconer, Anna Ostropolets, Tara V. Anand, Xinzhuo Jiang, David Dávila-García, Linying Zhang, Ruochong Fan, Hannah Morgan-Cooper, George Hripcsak)
Community: Building the OHDSI Evidence Network – A Global, Open, Federated Collaboration(Clair Blacketer, Haeun Lee, Benjamin Martijn, Evanette Burrows, Patricia Mabry, Deran McKeen, Sam Patnoe, Ben Gerber, Pantelis Natsiavas, Aamirah Vadsariya, Hanieh Razzaghi, Paul Nagy)

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, as well as tutorials from the SOS Challenge. Future tutorials will also be added here.

• A scholarship honoring the late Jamie Weaver has been created at the University of Oxford, and applications are now being accepted. This 3-year PhD funded studentship will focus on ‘Improving the quality of real world evidence by measuring and minimising outcome misclassification using the OMOP common data model and large multinational health data,’ research that Weaver was leading during his time as a PhD trainee at Oxford. More information and application details are available here.

Save The Dates

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Taxonomy development as an approach to harmonize source-level data (Maryia Rahozhkina)
Tuesday — Coordinating center-based, rather than self-deployed, data readiness assessment and improvement for oncology RWE (Asieh Golozar)
Wednesday —A Modular Framework for Data Harmonization: Enhancing Quality and Efficiency in Healthcare ETL Pipelines (Isaac Claessen)
Thursday — Vocabulary Versioning System for OMOP-CDM: Enabling Vocabulary Management Across Studies (Tasmeia Yousaf)
Friday — Enhancing Data Quality Assessment in Healthcare Research: A Comprehensive Evaluation Framework Using OMOP CDM (Júlia Moita)

Slides

Welcome to OHDSI | Community Updates

Video Presentation

Welcome to OHDSI/How Do I Get Started

On the eve of the 2025 Global Symposium, several presenters in the Collaborator Showcase joined the community call to share why attendees NEED to visit their poster or demo next week. Also, Patrick Ryan went over final logistics updates and provided a final overview of the 11th annual Global Symposium.

Community Updates

• Congratulations to the team of Deborah Layton, Laura Hester, and Asieh Golozar on the publication of Editorial: External control arms for single-arm studies: methodological considerations and applications in Frontiers in Drug Safety and Regulation.

• Congratulations to the team of Fran Biggin, Laura M White, Quinta Ashcroft, Timothy Howcroft, Vishnu Vardhan Chandrabalan, Hedley Emsley, and Jo Knight on the publication of Density of routinely collected neurology data depends on patient visit type: an investigation using the observational medical outcomes partnership common data model in BMJ Neurology Open.

• Congratulations to the team of Niaz Chalabianloo, Sheikh S. Abdullah, Mohammad Ali Omrani, Atefeh Jafari, Kamran Sedig, and Flory Tsobo Muanda on the publication of Enhancing adverse drug reaction data quality in Canada: A high-precision pipeline for medication name standardization and enrichment in PLOS One.

• Congratulations to the team of Florian Katsch, Ágota Mészáros, Tibor Héja, Rada Hussein and Georg Duftschmid on the recent publication of Semiautomatic mapping of a national drug terminology to standardised OMOP drug concepts using publicly available supplementary information in BMC Medical Research Methodology.

• Congratulations to the team of Theresa Burkard, Montse Camprubi, Daniel Prieto-Alhambra, Peter Rijnbeek, and Marta Pineda Moncusi on the recent publication of Best practices to design, plan, and execute large-scale federated analyses – key learnings and suggestions from a study comprising 52 databases in Applied Clinical Informatics.

• Congratulations to the team of Radovan Tomasik, Simon Konar, Niina Eklund, Cäcilia Engels, Zdenka Dudova, Radoslava Kacova, Roman Hrstka, Petr Holub on the recent publication of Definitions to data flow: Operationalizing MIABIS in HL7 FHIR in the Journal of Biomedical Informatics.

• Congratulations to the 86 individuals or teams who were nominated for a 2025 Titan Award. The winners will be announced during Wednesday’s closing session at the 2025 OHDSI Global Symposium. The nominees are: Agnes Kiragga • Akihiko Nishimura • Alexey Manoylenko • ALS TDI’s Real World Evidence Team • Andrew Williams • Andrew Kanter • Aniek Markus • Anna Ostropolets • Anthony Sena • Asieh Golozar • ATLAS Development Team • Ben Martin • Bill O’Brien • Bingyu Zhang • Carlos Diaz • Chungsoo Kim • Christopher Knoll • Clair Blacketer • Craig Sachson • Critical Path Institute’s Data Science and Data Engineering team • Cynthia Sung • Daniel Prieto-Alhambra • DARWIN-EU Team • Data4Life Team • Dave Kern • Davera Gabriel • Department of Biomedical Systems Informatics, Yonsei University College of Medicine • Deran Mckeen • Diane Corey • Egill Fridgeirsson • Eric Fey • Evanette Burrows • Eye Care and Vision Research WG • FHIR to OMOP WG • Freija Descamps • German Soto • Greg Klebanov • Hannah Lee • Harry Reyes Nieva • HealthPartners Institute • Henrik John • Ian Braun • Ilse Vermeulen • IQVIA OMOP DARWIN Team • IQVIA OMOP Productized Analytics Team • James Gilbert • Jamie Weaver • Jared Houghtaling • Jason Hsu • Jenna Reps • Jiwon Um • Joel Swerdel • John Gresh • Justin Bohn • Katia Verhamme • Lars Halvorsen • Liesbet Peeters • Lotte Geys • Maarten van Kessel • Marc Suchard • Marti Catala Sabate • Martijn Schuemie • Marty Alvarez • Maxim Moinat • Michael Matheny • Michel Walravens • Mike Pauley • Milou Brand • Mitchell Conover • Mukkesh Kumar • OHDSI Belgium Team • Patricia Mabry • Patrick Ryan • Pavan Sudhakar • Peter Hoffmann • Peter Rijnbeek • Polina Talapova • Renske Los • REWARD Team • Richard Boyce • Roger Carlson • Sam Patnoe • SciForce Team • Treatment Patterns Team • Vaccine Vocabulary Team • Will Roddy

• Join leaders in the OHDSI community November 17–18 in Toronto for the first pan-Canadian event to bring stakeholders from across Canada who are engaged in OMOP CDM transformations and research. The event will advance efforts to establish a Canadian OHDSI node and provide an opportunity to connect, collaborate, and gain insights into Canada’s OMOP landscape. Join leaders in the OHDSI community November 17–18 in Toronto for the first pan-Canadian event to bring stakeholders from across Canada who are engaged in OMOP CDM transformations and research. The event will advance efforts to establish a Canadian OHDSI node and provide an opportunity to connect, collaborate, and gain insights into Canada’s OMOP landscape. You can register here.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, as well as tutorials from the SOS Challenge. Future tutorials will also be added here.

• Tiffany Callahan (Senior Machine Learning Research Scientist at SandboxAQ) will provide a talk (Oct 30, 11 am ET) on ‘Agentic Mixture-of-Workflows for Multi-Modal Chemical Search’ during the next edition of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine speaker series. This will be held on Zoom; please reach out to Marty Alvarez ([email protected]) if you are interested in joining the session.

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• A scholarship honoring the late Jamie Weaver has been created at the University of Oxford, and applications are now being accepted. This 3-year PhD funded studentship will focus on ‘Improving the quality of real world evidence by measuring and minimising outcome misclassification using the OMOP common data model and large multinational health data,’ research that Weaver was leading during his time as a PhD trainee at Oxford. More information and application details are available here.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials

An Introduction to the Journey from Data to Evidence Using OHDSI
Faculty: Erica Voss, Johnson & Johnson; Yong Chen, University of Pennsylvania; Katy Sadowski, Boehringer Ingelheim; Nicole Pratt, University of South Australia

OHDSI 2025 Afternoon Tutorials

Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Faculty: Clair Blacketer, Johnson & Johnson; Karthik Natarajan, Columbia University; Evanette Burrows, Johnson & Johnson; Max Adulyanuksol, Mahidol University; Maxim Moinat, Erasmus MC

Using the OHDSI Standardized Vocabularies for Research
Faculty: Anna Ostropolets, Johnson & Johnson; Vlad Korsik, Odysseus Data Services; Polina Talapova, SciForce; Masha Khitrun, EPAM Systems

Clinical Characterization Applications to Generate Reliable Real-World Evidence
Faculty: Patrick Ryan, Johnson & Johnson; Aniek Markus, Erasmus MC; Hsin Yi Chen, Columbia University; Azza Shoaibi, Johnson & Johnson

Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Faculty: George Hripcsak, Columbia University; Martijn Schuemie, Johnson & Johnson; Linying Zhang, Washington University in St. Louis; Tara Anand, Columbia University

Patient-Level Prediction Applications to Generate Reliable Real-World Evidence
Faculty: Jenna Reps, Johnson & Johnson; Egill Fridgersson, Erasmus MC Ross Williams, Erasmus MC

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Implementing a Minimum Essential Definition of Cancer: Establishing standards and harmonising coding principles for a minimal cancer dataset in the OMOP common data model (Adil Ajmal)
Tuesday — OHDSI vocabulary updates with kotobuki (Sofia Bazakou)
Wednesday — Generating PBCR indicators through OMOP-CDM: a use case for breast cancer (Bruno Lima)
Thursday — Integrating NLP-Extracted SNOMED codes into OMOP-CDM_BCA (Freija Deschamps)
Friday — Custom mapping effect on hierarchy involvement and granularity: phenotyping implications (Tatsiana Skuhareuskaya)

Slides

Community Updates

Video Presentation

OHDSI 2025 Mad Minutes/Final Logistics

https://youtu.be/rBvp3NPEsyM

Educating a new generation of RWE healthcare researchers is a major focus for the OHDSI community. During the Sept. 23 community call, leaders from the Oxford University, Columbia University, and Johns Hopkins University presented some recent efforts around OHDSI education and the lessons learned from those initiatives:

George Hripcsak
Vivian Beaumont Allen Professor of Biomedical Informatics, Columbia University
Topic: OHDSI Summer School at Columbia DBMI

Dani Prieto-Alhambra
Section Head and Professor in Health Data Sciences, University of Oxford
Deputy Director of DARWIN EU Coordination Centre and Professor, Erasmus MC
Topic: Real World Evidence Summer School at Oxford

Paul Nagy
Head of Biomedical Informatics and Associate Professor, Johns Hopkins University

Topic: OHDSI in Johns Hopkins Postgraduate Education / OHDSI Maternal Health Fellowship

Community Updates

• Congratulations to the team of Kim López-Güell, Martí Català, Daniel Dedman, Talita Duarte-Salles, Raivo Kolde, Raúl López-Blasco, Álvaro Martínez, Gregoire Mercier, Alicia Abellan, Johnmary T Arinze, Theresa Burkard, Edward Burn, Zara Cuccu, Antonella Delmestri, Dominique Delseny, Sara Khalid, Chungsoo Kim, Ji-Woo Kim, Kristin Kostka, Cora Loste, Miguel A Mayer, Jaime Meléndez-Cardiel, Núria Mercadé-Besora, Mees Mosseveld, Akihito Nishimura, Hedvig Me Nordeng, Jessie O Oyinlola, Roger Paredes, Laura Pérez-Crespo, Marta Pineda-Moncusí, Juan Manuel Ramírez-Anguita, Nhung T H Trinh, Anneli Uusküla, Bernardo Valdivieso, Daniel Prieto-Alhambra, Junqing Xie, Lourdes Mateu, and Annika M Jödicke on the publication of Clusters of post-acute COVID-19 symptoms: a latent class analysis across 9 databases and 7 countries in the Journal of Clinical Epidemiology.

• Congratulations to the team of George Kafatos, Joe Maskell, Olia Archangelidi, and David Neasham on the publication of Validation of the transformed clinical practice research datalink (CPRD) GOLD and aurum data into the OMOP common data model in the Health Informatics Journal.

• Congratulations to the team of Aparajita Kashyap, Maryam Aziz, Tony Y Sun, Sharon Lipsky Gorman, Jessica Opoku-Anane, and Noémie Elhadad on the publication of Investigating racial disparities in drug prescriptions for patients with endometriosis in NPJ Women’s Health.

• Congratulations to the 86 individuals or teams who were nominated for a 2025 Titan Award. The winners will be announced during Wednesday’s closing session at the 2025 OHDSI Global Symposium. The nominees are: Agnes Kiragga • Akihiko Nishimura • Alexey Manoylenko • ALS TDI’s Real World Evidence Team • Andrew Williams • Andrew Kanter • Aniek Markus • Anna Ostropolets • Anthony Sena • Asieh Golozar • ATLAS Development Team • Ben Martin • Bill O’Brien • Bingyu Zhang • Carlos Diaz • Chungsoo Kim • Christopher Knoll • Clair Blacketer • Craig Sachson • Critical Path Institute’s Data Science and Data Engineering team • Cynthia Sung • Daniel Prieto-Alhambra • DARWIN-EU Team • Data4Life Team • Dave Kern • Davera Gabriel • Department of Biomedical Systems Informatics, Yonsei University College of Medicine • Deran Mckeen • Diane Corey • Egill Fridgeirsson • Eric Fey • Evanette Burrows • Eye Care and Vision Research WG • FHIR to OMOP WG • Freija Descamps • German Soto • Greg Klebanov • Hannah Lee • Harry Reyes Nieva • HealthPartners Institute • Henrik John • Ian Braun • Ilse Vermeulen • IQVIA OMOP DARWIN Team • IQVIA OMOP Productized Analytics Team • James Gilbert • Jamie Weaver • Jared Houghtaling • Jason Hsu • Jenna Reps • Jiwon Um • Joel Swerdel • John Gresh • Justin Bohn • Katia Verhamme • Lars Halvorsen • Liesbet Peeters • Lotte Geys • Maarten van Kessel • Marc Suchard • Marti Catala Sabate • Martijn Schuemie • Marty Alvarez • Maxim Moinat • Michael Matheny • Michel Walravens • Mike Pauley • Milou Brand • Mitchell Conover • Mukkesh Kumar • OHDSI Belgium Team • Patricia Mabry • Patrick Ryan • Pavan Sudhakar • Peter Hoffmann • Peter Rijnbeek • Polina Talapova • Renske Los • REWARD Team • Richard Boyce • Roger Carlson • Sam Patnoe • SciForce Team • Treatment Patterns Team • Vaccine Vocabulary Team • Will Roddy

• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.

• A scholarship honoring the late Jamie Weaver has been created at the University of Oxford, and applications are now being accepted. This 3-year PhD funded studentship will focus on ‘Improving the quality of real world evidence by measuring and minimising outcome misclassification using the OMOP common data model and large multinational health data,’ research that Weaver was leading during his time as a PhD trainee at Oxford. More information and application details are available here.

• The agenda for the 2025 Global Symposium is now available. Specific information, including presenters, talk/poster/demo titles, and more will be added when available.

• The pioneers behind FHIR, openEHR and OMOP have aligned their visions, clarified how the standards fit together, and set out a roadmap for scaling responsibly and sustainably. They will lead a workshop Monday, Sept. 29 (7-8 am ET) called “Delivery, Not Hype: How to Harmonise FHIR × openEHR × OMOP in practice” to focus on how to make it work in practice. Use this link to join the session.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials

An Introduction to the Journey from Data to Evidence Using OHDSI
Faculty: Erica Voss, Johnson & Johnson; Yong Chen, University of Pennsylvania; Katy Sadowski, Boehringer Ingelheim; Nicole Pratt, University of South Australia

OHDSI 2025 Afternoon Tutorials

Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Faculty: Clair Blacketer, Johnson & Johnson; Karthik Natarajan, Columbia University; Evanette Burrows, Johnson & Johnson; Max Adulyanuksol, Mahidol University; Maxim Moinat, Erasmus MC

Using the OHDSI Standardized Vocabularies for Research
Faculty: Anna Ostropolets, Johnson & Johnson; Vlad Korsik, Odysseus Data Services; Polina Talapova, SciForce; Masha Khitrun, EPAM Systems

Clinical Characterization Applications to Generate Reliable Real-World Evidence
Faculty: Patrick Ryan, Johnson & Johnson; Aniek Markus, Erasmus MC; Hsin Yi Chen, Columbia University; Azza Shoaibi, Johnson & Johnson

Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Faculty: George Hripcsak, Columbia University; Martijn Schuemie, Johnson & Johnson; Linying Zhang, Washington University in St. Louis; Tara Anand, Columbia University

Patient-Level Prediction Applications to Generate Reliable Real-World Evidence
Faculty: Jenna Reps, Johnson & Johnson; Egill Fridgersson, Erasmus MC Ross Williams, Erasmus MC

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — SNOMED_SEARCH: A pipeline for evaluating the feasibility of integrating BIFAP, a partially standardized database, into collaborative OMOP Clinical Data Model studies (Hermenegildo Martinez-Alcala)
Tuesday — Refresh of the HemOnc in OHDSI Standardized vocabularies: following the best practice of the community contribution (Oleg Zhuk)
Wednesday — Standardized Terminology Gap Analysis In OHDSI Vocabularies For The Critical Care Domain And Modular Extension Strategy: Progress From The Bridge2AI For Clinical Care CHoRUS Project (Polina Talapova)
Thursday — Moving towards standard observation period settings for OMOP-based EHR data: results from the HERON-UK network (Andy South)
Friday — Progress Toward Integrating Multimodal Data with the OMOP CDM (Jared Houghtaling)

Slides

Columbia | Oxford | Johns Hopkins | Community Updates

Video Presentations

Columbia University (George Hripcsak)

Oxford University (Dani Prieto-Alhambra)

Johns Hopkins University (Paul Nagy)

The OHDSI community has published more than 800 studies over more than a decade, and lead authors from five different recent publications joined the Sept. 16 community call to briefly present their study.

Jessie Tong • Assistant Professor, Johns Hopkins University
Unlocking efficiency in real-world collaborative studies: a multi-site international study with one-shot lossless GLMM algorithm • NPJ Digital Medicine

Kim López Güell • Dphil Candidate, University of Oxford
Clusters of post-acute COVID-19 symptoms: a latent class analysis across 9 databases and 7 countries • Journal of Clinical Epidemiology

Jen Wooyeon Park • PhD Student, Johns Hopkins University
Breaking data silos: incorporating the DICOM imaging standard into the OMOP CDM to enable multimodal research • JAMIA

Abigail Newbury • PhD Student, Columbia University
Multi-domain rule-based phenotyping algorithms enable improved GWAS signal • NPJ Digital Medicine

Benjamin Martin • Postdoctoral Fellow, Johns Hopkins University
Identification of Adult Dermatomyositis Patients Using Real-World Data Sources • Arthritis Care and Research

Community Updates

• Congratulations to the team of Clair Blacketer, Frank DeFalco, Mitchell Conover, Patrick Ryan, Martijn Schuemie, and Peter Rijnbeek on the publication of Evaluation of the impact of defining observable time in real-world data on outcome incidence in JAMIA.

• Congratulations to the 86 individuals or teams who were nominated for a 2025 Titan Award. The winners will be announced during Wednesday’s closing session at the 2025 OHDSI Global Symposium. The nominees are: Agnes Kiragga • Akihiko Nishimura • Alexey Manoylenko • ALS TDI’s Real World Evidence Team • Andrew Williams • Andrew Kanter • Aniek Markus • Anna Ostropolets • Anthony Sena • Asieh Golozar • ATLAS Development Team • Ben Martin • Bill O’Brien • Bingyu Zhang • Carlos Diaz • Chungsoo Kim • Christopher Knoll • Clair Blacketer • Craig Sachson • Critical Path Institute’s Data Science and Data Engineering team • Cynthia Sung • Daniel Prieto-Alhambra • DARWIN-EU Team • Data4Life Team • Dave Kern • Davera Gabriel • Department of Biomedical Systems Informatics, Yonsei University College of Medicine • Deran Mckeen • Diane Corey • Egill Fridgeirsson • Eric Fey • Evanette Burrows • Eye Care and Vision Research WG • FHIR to OMOP WG • Freija Descamps • German Soto • Greg Klebanov • Hannah Lee • Harry Reyes Nieva • HealthPartners Institute • Henrik John • Ian Braun • Ilse Vermeulen • IQVIA OMOP DARWIN Team • IQVIA OMOP Productized Analytics Team • James Gilbert • Jamie Weaver • Jared Houghtaling • Jason Hsu • Jenna Reps • Jiwon Um • Joel Swerdel • John Gresh • Justin Bohn • Katia Verhamme • Lars Halvorsen • Liesbet Peeters • Lotte Geys • Maarten van Kessel • Marc Suchard • Marti Catala Sabate • Martijn Schuemie • Marty Alvarez • Maxim Moinat • Michael Matheny • Michel Walravens • Mike Pauley • Milou Brand • Mitchell Conover • Mukkesh Kumar • OHDSI Belgium Team • Patricia Mabry • Patrick Ryan • Pavan Sudhakar • Peter Hoffmann • Peter Rijnbeek • Polina Talapova • Renske Los • REWARD Team • Richard Boyce • Roger Carlson • Sam Patnoe • SciForce Team • Treatment Patterns Team • Vaccine Vocabulary Team • Will Roddy

• A scholarship honoring the late Jamie Weaver has been created at the University of Oxford, and applications are now being accepted. This 3-year PhD funded studentship will focus on ‘Improving the quality of real world evidence by measuring and minimising outcome misclassification using the OMOP common data model and large multinational health data,’ research that Weaver was leading during his time as a PhD trainee at Oxford. More information and application details are available here.

• The agenda for the 2025 Global Symposium is now available. Specific information, including presenters, talk/poster/demo titles, and more will be added when available.

• The OHDSI community will lead multiple sessions during the 2025 United Nations Science Summit on Thursday, Sept. 18. The 8:30 am ET session and the 11:00 am ET session will both be available online, and speakers for each are listed on their specific session pages.

• The pioneers behind FHIR, openEHR and OMOP have aligned their visions, clarified how the standards fit together, and set out a roadmap for scaling responsibly and sustainably. They will lead a workshop Monday, Sept. 29 (7-8 am ET) called “Delivery, Not Hype: How to Harmonise FHIR × openEHR × OMOP in practice” to focus on how to make it work in practice. Use this link to join the session.

• All resources, including videos, posters and abstracts from the OHDSI Europe Symposium are now available on the event homepage.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials

An Introduction to the Journey from Data to Evidence Using OHDSI
Faculty: Erica Voss, Johnson & Johnson; Yong Chen, University of Pennsylvania; Katy Sadowski, Boehringer Ingelheim; Nicole Pratt, University of South Australia

OHDSI 2025 Afternoon Tutorials

Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Faculty: Clair Blacketer, Johnson & Johnson; Karthik Natarajan, Columbia University; Evanette Burrows, Johnson & Johnson; Max Adulyanuksol, Mahidol University; Maxim Moinat, Erasmus MC

Using the OHDSI Standardized Vocabularies for Research
Faculty: Anna Ostropolets, Johnson & Johnson; Vlad Korsik, Odysseus Data Services; Polina Talapova, SciForce; Masha Khitrun, EPAM Systems

Clinical Characterization Applications to Generate Reliable Real-World Evidence
Faculty: Patrick Ryan, Johnson & Johnson; Aniek Markus, Erasmus MC; Hsin Yi Chen, Columbia University; Azza Shoaibi, Johnson & Johnson

Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Faculty: George Hripcsak, Columbia University; Martijn Schuemie, Johnson & Johnson; Linying Zhang, Washington University in St. Louis; Tara Anand, Columbia University

Patient-Level Prediction Applications to Generate Reliable Real-World Evidence
Faculty: Jenna Reps, Johnson & Johnson; Egill Fridgersson, Erasmus MC Ross Williams, Erasmus MC

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Connecting the dots at Hospital del Mar: integrating hospital, primary care and registry data for an enriched OMOP-CDM database (Angela Leis)
Tuesday — Phenotyping Adverse Events of Special Interest: Successes and Challenges (George Corby)
Wednesday — Evolution of the volume, structure & content of Estonian HL7 CDA R2 records (2012 – 2019) — Implications for OMOP CDM ETL (Harry-Anton Talvik)
Thursday — Experiences with the development of an EORTC source vocabulary to represent QoL questionnaire data in OMOP (Vlad Korsik)
Friday — LabMapper: A tool for Mapping Measurement Data to the LOINC vocabulary in OMOP (Emma Gesquiere)

Slides

Tong | Guell | Park | Newbury | Martin | Community Updates

Video Presentation

Unlocking efficiency in real-world collaborative studies: a multi-site international study with one-shot lossless GLMM algorithm (Tong)

Clusters of post-acute COVID-19 symptoms: a latent class analysis across 9 databases and 7 countries (Guell)

Breaking data silos: incorporating the DICOM imaging standard into the OMOP CDM to enable multimodal research (Park)

Multi-domain rule-based phenotyping algorithms enable improved GWAS signal (Newbury)

Identification of Adult Dermatomyositis Patients Using Real-World Data Sources (Martin)

Sept. 9, 2025

The 2025 OHDSI Global Symposium is one month away (register here), and the Sept. 9 community call went through the full three-day agenda so the community could get a sense of everything happening Oct. 7-9 in New Brunswick, N.J. This session highlighted the main conference plenary and activities, as well as the Collaborator Showcase posters/demos/talks. Leads from various tutorials and workgroup activities previewed options available on both Tuesday and Thursday.

Community Updates

• Congratulations to the team of Junqing Xie, Mike Du, Yuchen Guo, Cesar Barboza, James T Brash, Antonella Delmestri, Talita Duarte-Salles, Jasmine Gratton, Romain Griffier, Raivo Kolde, Wai Yi Man, Núria Mercadé-Besora, Marek Oja, Sarah Seager, Katia Verhamme, Dina Vojinovic, Edward Burn, Daniel Prieto-Alhambra, Martí Català, Annika M Jödicke on the publication of Trends in prescription opioid use in Europe: A DARWIN EU® multinational cohort study including seven European countries in Frontiers in Pharmacology.

• Congratulations to the team of Daniel Neumann, Richard Gebler, Jana Kiederle, Jördis Beck, Fabio Aubele, Alexander Struebing, Florian Schmidt, Matthias Reusche, Helene Koester, Markus Loeffler, Sebastian Staeubert on the publication of Development and Implementation of an Open, Modular, and Participatory Toolchain for Distributed IT Development in Healthcare Research – Lessons Learned in Volume 331 of Studies in Health Technology and Informatics: German Medical Data Sciences 2025: GMDS Illuminates Health.

• Nominations for the 2025 Titan Awards close Tuesday, Sept. 9, at 8 pm ET. The Titan Awards recognize OHDSI collaborators (or collaborating institutions) for their contributions towards OHDSI’s mission; they are nominated and voted upon by members of the community.

• A scholarship honoring the late Jamie Weaver has been created at the University of Oxford, and applications are now being accepted. This 3-year PhD funded studentship will focus on ‘Improving the quality of real world evidence by measuring and minimising outcome misclassification using the OMOP common data model and large multinational health data,’ research that Weaver was leading during his time as a PhD trainee at Oxford. More information and application details are available here.

• The agenda for the 2025 Global Symposium is now available. Specific information, including presenters, talk/poster/demo titles, and more will be added when available.

• The OHDSI community will lead multiple sessions during the 2025 United Nations Science Summit on Thursday, Sept. 18. The 8:30 am ET session and the 11:00 am ET session will both be available online, and speakers for each are listed on their specific session pages.

• The pioneers behind FHIR, openEHR and OMOP have aligned their visions, clarified how the standards fit together, and set out a roadmap for scaling responsibly and sustainably. They will lead a workshop Monday, Sept. 29 (7-8 am ET) called “Delivery, Not Hype: How to Harmonise FHIR × openEHR × OMOP in practice” to focus on how to make it work in practice. Use this link to join the session.

• All resources, including videos, posters and abstracts from the OHDSI Europe Symposium are now available on the event homepage.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials

An Introduction to the Journey from Data to Evidence Using OHDSI
Faculty: Erica Voss, Johnson & Johnson; Yong Chen, University of Pennsylvania; Katy Sadowski, Boehringer Ingelheim; Nicole Pratt, University of South Australia

OHDSI 2025 Afternoon Tutorials

Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Faculty: Clair Blacketer, Johnson & Johnson; Karthik Natarajan, Columbia University; Evanette Burrows, Johnson & Johnson; Max Adulyanuksol, Mahidol University; Maxim Moinat, Erasmus MC

Using the OHDSI Standardized Vocabularies for Research
Faculty: Anna Ostropolets, Johnson & Johnson; Vlad Korsik, Odysseus Data Services; Polina Talapova, SciForce; Masha Khitrun, EPAM Systems

Clinical Characterization Applications to Generate Reliable Real-World Evidence
Faculty: Patrick Ryan, Johnson & Johnson; Aniek Markus, Erasmus MC; Hsin Yi Chen, Columbia University

Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Faculty: George Hripcsak, Columbia University; Martijn Schuemie, Johnson & Johnson; Linying Zhang, Washington University in St. Louis; Tara Anand, Columbia University

Patient-Level Prediction Applications to Generate Reliable Real-World Evidence
Faculty: Jenna Reps, Johnson & Johnson; Egill Fridgersson, Erasmus MC Ross Williams, Erasmus MC

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. The abstract submission deadline is Sept. 10. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available. The abstract submission deadline will be Sept. 7.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — ECRAID-Base OMOP-CDM ETL Architecture for Scalable Health Data Integration (Panagiotis Gialernios)

Tuesday — Multiple myeloma lines of treatment: from drug_exposure to proper Episode table (Dmitry Dymshyts)
Wednesday — Lessons learned from the OHDSI-NL study-a-thon on breast cancer (Aniek Markus)
Thursday — Catalysing biobank diversity analysis through a common data model (Karen Mégy)
Friday — Key learnings after transformation of a CDISC SDTM database into OMOP CDM (Amélie Lambert)

Slides

Community Updates

Video Presentation

Global Symposium Preview

The Sept. 2 OHDSI community call featured highlights from the newly released 2025 Vocabulary Summer Refresh. Learn about the latest updates and how they can benefit your research and collaboration from the video presentation below. The session was led by:

• Masha Khitrun, Senior Scientific Curation Specialist, EPAM Systems
• Vlad Korsik, Vocabulary Technical Lead, EPAM Systems
• Anna Ostropolets, Associate Director, Johnson & Johnson Innovative Medicine; Adjunct Assistant Professor, Columbia University
• Melanie Philofsky, Director Clinical Informatics, EPAM Systems

Alexander Davydov (Consulting Partner, Thesaurus Health) joined at the end to introduce the Vocabathon that will be taking place during the 2025 Global Symposium.

Community Updates

• Congratulations to the team of Jae-Hyuk Jang, ChulHyoung Park, Chungsoo Kim, Youngsoo Lee, Eunyoung Lee, Rae Woong Park, and Hae-Sim Park on the publication of Real-World Effectiveness of Omalizumab Treatment in Adult Asthma Patients in the Yonsei Medical Journal.

• Congratulations to the team of Seon Beom Jo, Sun Tae Ahn, Hyung Joon Joo, Jong Wook Kim, and Mi Mi Oh on the publication of Carbapenem Resistance and ESBL-Producing Enterobacteriaceae in Patients with Urological Infections from 2012 to 2021 in Three Korean Hospitals in Diagnostics.

• Nominations for the 2025 Titan Awards remain open for one more week; please nominate an individual or team for a 2025 Titan Award by 8 pm ET on Sept. 9. The Titan Awards recognize OHDSI collaborators (or collaborating institutions) for their contributions towards OHDSI’s mission; they are nominated and voted upon by members of the community.

• The agenda for the 2025 Global Symposium is now available. Specific information, including presenters, talk/poster/demo titles, and more will be added when available.

• The OHDSI community will lead multiple sessions during the 2025 United Nations Science Summit on Thursday, Sept. 18. The 8:30 am ET session and the 11:00 am ET session will both be available online, and speakers for each are listed on their specific session pages.

• The latest edition of the OHDSI newsletter is now available. The September On The Journey includes details from the recent session on LLM innovations, Global Symposium updates, a new collaborator spotlight, August publications and presentations, community updates and more. If you don’t receive the newsletter in your inbox, you can subscribe here.

• All resources, including videos, posters and abstracts from the OHDSI Europe Symposium are now available on the event homepage.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials
An Introduction to the Journey from Data to Evidence Using OHDSI
Lead: Erica Voss

OHDSI 2025 Afternoon Tutorials
Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Lead: Clair Blacketer
Using the OHDSI Standardized Vocabularies for Research
Lead: Anna Ostropolets
Clinical Characterization Applications to Generate Reliable Real-World Evidence
Lead: Patrick Ryan
Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Lead: George Hripcsak
Patient-Level Prediction Applications to Generate Reliable Real-World Evidence 
Lead: Jenna Reps

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. The abstract submission deadline is Sept. 10. A tentative agenda has been posted on the event homepage.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. Registration is open, and agenda details will be shared when available. The abstract submission deadline will be Sept. 7.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Automated Identification of Treatment Trajectories on OMOP CDM (Markus Haug)
Tuesday — RIANA Dashboard: A Blockchain-Enabled Approach for Representing AI Model Intent in OMOP with Atlas-Like Functionality (Frederic Jung)
Wednesday — Improvement of operational efficiency in clinical studies thanks to OMOP repositories of data from clinical practice (Thibault Helleputte)
Thursday — Standardization of Routine Clinical Data Using the OMOP Common Data Model: Exploring Its Application in Infectious Disease Research (Maxim Moinat)
Friday — Enhancing Transparency in Healthcare – Blockchain-Supported Model Cards for AI Evaluation Reporting with OMOP and Heracles (Frederic Jung)

Slides

Standardized Vocabularies Summer Refresh | APAC Studies Call for Data Partners | Community Updates

Video Presentations

Standardized Vocabularies Summer Refresh

APAC Network Studies Call for Data Partners

The Aug. 26 community call welcomed collaborators around the world to provide brief presentations on LLM-related projects they are working on, to both show the breadth of work happening in OHDSI, but to also create avenues for collaboration within the network. The following collaborators provided presentations:

– Georgina Kennedy (slides didn’t work in original talk, so a update is added afterwards)
– Olga Endrich
– Joel Swerdel
– Zsolt István
– Jianlin Shi
– Rowan Perry
– Iurii Iurchenko
– Subin Kim
– Sumin Lee
– Hanjae Kim

Community Updates

• Congratulations to the team of Erik M. van Mulligen, Rowan Parry, Johan van der Lei, and Jan A. Kors on the publication of Mapping between clinical and preclinical terminologies: eTRANSAFE’s Rosetta stone approach in the Journal of Biomedical Semantics.

• Congratulations to the team of Umair Khan, Tomiko T Oskotsky, Bahar D Yilmaz, Jacquelyn Roger, Ketrin Gjoni, Juan C Irwin, Jessica Opoku-Anane, Noémie Elhadad, Linda C Giudice, and Marina Sirota on the publication of Comorbidity analysis and clustering of endometriosis patients using electronic health records in Cell Reports Medicine.

• Gaurav Dravida joined the Aug. 26 community call to provide an update on the Health Economics and Value Assessment (HEVA) Workgroup, which is being restarted with a mission to empower the OHDSI community to improve health by collaboratively generating reliable evidence on comparative value and economic impact. The workgroup will develop and promote open-source tools and standardized methods that meet the requirement of HTA bodies and payers.

• The agenda for the 2025 Global Symposium is now available. Specific information, including presenters, talk/poster/demo titles, and more will be added when available.

• Nominations for the 2025 Titan Awards are now open. The Titan Awards recognize OHDSI collaborators (or collaborating institutions) for their contributions towards OHDSI’s mission; they are nominated and voted upon by members of the community.

• The CDM Survey subgroup invites colleagues who have or are going to design, develop, and/or implement research surveys and use them with the OMOP CDM to share information about those efforts by completing this survey. Your completion of this 10-15 minute survey will provide information to the CDM workgroup about OMOP utilization among survey research teams.  The CDM Survey subgroup is a collaborative effort, led by a team at the National Cancer Institute, to develop standardized approaches and best practices for helping research teams better integrate survey data elements into the OMOP common data model. The survey will remain open through the end of August.

• All resources, including videos, posters and abstracts from the OHDSI Europe Symposium are now available on the event homepage.

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials
An Introduction to the Journey from Data to Evidence Using OHDSI
Lead: Erica Voss

OHDSI 2025 Afternoon Tutorials
Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Lead: Clair Blacketer
Using the OHDSI Standardized Vocabularies for Research
Lead: Anna Ostropolets
Clinical Characterization Applications to Generate Reliable Real-World Evidence
Lead: Patrick Ryan
Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Lead: George Hripcsak
Patient-Level Prediction Applications to Generate Reliable Real-World Evidence 
Lead: Jenna Reps

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. The abstract submission deadline will be Sept. 10. Agenda details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China, and registration will be open soon. The abstract submission deadline will be Sept. 7. More details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Systematic evaluation of medication adherence determinants across 137 ingredients on population-level real-world health data (Kerli Mooses).
Tuesday — Estonian Biobank vs General Population: Analysis of diagnosis prevalences (Maarja Pajusalu)
Wednesday — Impact of prior observation requirements on denominator populations (Berta Raventós)
Thursday — Data cleaning and imputation approach for a real-world prescription database and its effect on medication adherence calculations (Maria Malk)
Friday — Ehrdata – a machine-learning-friendly infrastructure in Python with extraction utility for the OMOP Common Data Model (Eljas Roellin)

Slides

LLM Innovations | HEVA Workgroup | Community Updates

Video Presentations

LLM Innovations

HEVA Workgroup

https://youtu.be/HcxKbuGkZFg

Jamie Weaver, a 2019 Titan Award recipient, keynote speaker at the 2021 OHDSI Global Symposium and collaborator with OHDSI members around the world, passed away recently at the age of 44. His scientific innovations and legacy were highlighted during the Aug. 19 community call, and his 2021 keynote was replayed. The session ended with tributes from fellow OHDSI collaborators.

Community Updates

• Congratulations to the team of Benjamin Martin, Will Kelly, Hannah Morgan-Cooper, Thomas Falconer, Elizabeth Park, Priya Desai, David Fiorentino, Lorinda Chung, Sean Yen, Zachary Wang, Didem Saygin, Michael George, Gowtham A. Rao, Joel Swerdel, Azza Shoaibi, and Christopher A. Mecoli on the publication of Identification of Adult Dermatomyositis Patients Using Real-World Data Sources in Arthritis Care & Research.

• The agenda for the 2025 Global Symposium is now available. Specific information, including presenters, talk/poster/demo titles, and more will be added when available.

• Nominations for the 2025 Titan Awards are now open. The Titan Awards recognize OHDSI collaborators (or collaborating institutions) for their contributions towards OHDSI’s mission; they are nominated and voted upon by members of the community.

• The CDM Survey subgroup invites colleagues who have or are going to design, develop, and/or implement research surveys and use them with the OMOP CDM to share information about those efforts by completing this survey. Your completion of this 10-15 minute survey will provide information to the CDM workgroup about OMOP utilization among survey research teams.  The CDM Survey subgroup is a collaborative effort, led by a team at the National Cancer Institute, to develop standardized approaches and best practices for helping research teams better integrate survey data elements into the OMOP common data model. The survey will remain open through the end of August.

• All resources, including videos, posters and abstracts from the OHDSI Europe Symposium are now available on the event homepage.

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials
An Introduction to the Journey from Data to Evidence Using OHDSI
Lead: Erica Voss

OHDSI 2025 Afternoon Tutorials
Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Lead: Clair Blacketer
Using the OHDSI Standardized Vocabularies for Research
Lead: Anna Ostropolets
Clinical Characterization Applications to Generate Reliable Real-World Evidence
Lead: Patrick Ryan
Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Lead: George Hripcsak
Patient-Level Prediction Applications to Generate Reliable Real-World Evidence 
Lead: Jenna Reps

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. The abstract submission deadline will be Sept. 10. Agenda details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China, and registration will be open soon. The abstract submission deadline will be Sept. 7. More details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Insights from the first OHDSI Germany Study-a-thon (Michele Zoch)
Tuesday — Mapping Source Data to the OMOP Common Data Model for Telehealth in Chronic Heart Failure: Process, Challenges and Lessons Learned (Karl Kreiner)
Wednesday — Achieving consensus on a OMOP CDM used for federative automated surveillance in healthcare associated infections: A Delphi study (Sophie van Wingerden)
Thursday — Valuing Clinical Text: From information extraction to predictive modeling (Tom Seinen)
Friday — Loss function influence on hyperparameter optimization for observational healthcare prediction models (Fleur Vereijken)

Slides

Tribute to a Titan: Jamie Weaver | Community Updates

Video Presentations

Tribute to a Titan: Jamie Weaver

https://youtu.be/x76FDzhXCmI

The Aug. 12 community call served as the annual “Meet the OHDSI Newcomers” summer session, and it was one of our most engaging calls we have had. Members from around the world, and with various research interests, joined to introduce themselves, talk a bit about their research, how they hope to contribute to OHDSI, and how they hope the community can aid their own journeys. Learn more about some potential collaborators! 

Community Updates

• Congratulations to the team of Christine Ramsey-Hardy, Melissa Skanderson, Janet P Tate, Amy C Justice, Vincent C Marconi, Charles Alcorn, Ronald G Hauser, Amy Anderson-Mellies, and Kathleen A McGinnis on the publication of Comparison of 2 electronic health record data extraction methods for laboratory tests used in the Veterans Aging Cohort Study Index in JAMIA Open.

• Congratulations to the team of Yilu Fang, Gongbo Zhang, Fangyi Chen, George Hripcsak, Yifan Peng, Patrick Ryan, and Chunhua Weng on the publication of CLEAR: A vision to support clinical evidence lifecycle with continuous learning in JAMIA Open.

• Congratulations to the team of Shahin Hallaj, William Halfpenny, Niloofar Radgoudarzi, Michael V Boland, Swarup S Swaminathan, Sophia Y Wang, Benjamin Y Xu, Dilru C Amarasekera, Brian Stagg, Aiyin Chen, Michelle Hribar, Kaveri A Thakoor, Kerry E Goetz, Jonathan S Myers, Aaron Y Lee, Mark A Christopher, Linda M Zangwill, Robert N Weinreb, and Sally L Baxter on the publication of Gap Analysis of Standard Automated Perimetry Concept Representation in Medical Terminologies in the Journal of Glaucoma.

• Congratulations to the team of Yoshihiro Aoyagi, Masahiro Baba, Suzue Terao, Yuya Ikeda, Keiichi Nomura, and Akihiro Sato on the publication of Feasibility of Converting EMR Data to OMOP CDM and Utilizing OHDSI Analysis Tools in Japan in Studies in Health Technology and Information Volume 329: MEDINFO 2025 — Healthcare Smart × Medicine Deep.

• Congratulations to the team of Yao An Lee, Ying Lu, Jiang Bian, Jingchuan Guo, and Xing He on the publication of Transforming the Medicare Claims Data to the OMOP Common Data Model in Studies in Health Technology and Information Volume 329: MEDINFO 2025 — Healthcare Smart × Medicine Deep.

• Congratulations to the team of Yan Hu, Na Hong, Yiming Li, Xueqing Peng, Yong Chen, and Hua Xu on the publication of PheCatcher: Leveraging LLM-Generated Synthetic Data for Automated Phenotype Definition Extraction from Biomedical Literature in Studies in Health Technology and Information Volume 329: MEDINFO 2025 — Healthcare Smart × Medicine Deep.

• Congratulations to the team of Clair Blacketer, Martijn J Schuemie, Maxim Moinat, Erica A Voss, Montse Camprubi, Peter R Rijnbeek, and Patrick B Ryan on the publication of Advancing Real-World Evidence Through a Federated Health Data Network (EHDEN): Descriptive Study in the Journal of Medical Internet Research.

• Nominations for the 2025 Titan Awards are now open. The Titan Awards recognize OHDSI collaborators (or collaborating institutions) for their contributions towards OHDSI’s mission; they are nominated and voted upon by members of the community.

• The CDM Survey subgroup invites colleagues who have or are going to design, develop, and/or implement research surveys and use them with the OMOP CDM to share information about those efforts by completing this survey. Your completion of this 10-15 minute survey will provide information to the CDM workgroup about OMOP utilization among survey research teams.  The CDM Survey subgroup is a collaborative effort, led by a team at the National Cancer Institute, to develop standardized approaches and best practices for helping research teams better integrate survey data elements into the OMOP common data model. The survey will remain open through the end of August.

• All resources, including videos, posters and abstracts from the OHDSI Europe Symposium are now available on the event homepage.

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials
An Introduction to the Journey from Data to Evidence Using OHDSI
Lead: Erica Voss

OHDSI 2025 Afternoon Tutorials
Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Lead: Clair Blacketer
Using the OHDSI Standardized Vocabularies for Research
Lead: Anna Ostropolets
Clinical Characterization Applications to Generate Reliable Real-World Evidence
Lead: Patrick Ryan
Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Lead: George Hripcsak
Patient-Level Prediction Applications to Generate Reliable Real-World Evidence 
Lead: Jenna Reps

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. The abstract submission deadline will be Sept. 10. Agenda details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China, and registration will be open soon. The abstract submission deadline will be Sept. 7. More details will be shared when available.

OHDSI Social Showcase

• Research from the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Progress and Challenges of the OHDSI Africa Chapter (Cynthia Sung, Agnes Kiragga)
Tuesday — Unlocking Real-World Evidence through Common Data Models: Challenges and Opportunities in the Italian Context (Gianluca Fabiano)
Wednesday — Novel Data-Driven Approaches for Code Recommendations and Visualization during Phenotype Evaluation (Luisa Martinez)
Thursday — “Studyathons” can catalyse rapid progress in OMOP-enabled oncology research: insights from DigiONE I3 (Xosé Fernández)
Friday — The REACT-TIA Study-a-thon: Conducting a rapid multi-database cohort study in a pharmaceutical company – Lessons learned (Elif Inan-Eroglu)

Slides

Community Updates

Video Presentations

Meet the Newcomers

https://youtu.be/kD-hIR5joD0

The OHDSI community continues to flourish in our Asia-Pacific region, and leads of eight regional chapters in the APAC community provided mid-year updates during our July 29 community call.

Singapore: Evelyn Goh (PhD Student, National Univ. of Singapore)
Japan: Keiko Asao (President, Kappa Medical K.K.)
India: Swetha Jakkuva (Real World Evidence Lead, Global Value Web)
Thailand: Max Natthawut Adulyanukosol (Deputy Director of Siriraj Informatics and Data Innovation, Mahidol Univ.)
Korea: Seng Chan You (Assistant Professor, National Univ. of Singapore)
Vietnam: Phan Thanh-Phuc (Data Science Professional, Univ. Medical Center)
Taiwan: Jason Hsu (Professor, Taipei Medical University)
China: Hui Lu (Distinguished Professor, Shanghai Jiao Tong Univ.)

Davera Gabriel and Jean Duteau provided an update on the FHIR-to-OMOP Implementation Guide. They discussed what is in the guide and how you can provide feedback by joining the formal review before the ballot pool closes on August 7. More details are available here.

Community Updates

• Congratulations to the team of Samuel Trezena, Daniella Reis Barbosa Martelli, Paulo Rogério Ferreti Bonan, Edgard Graner, Lívia Maria Ferreira Sobrinho, Faizan Alawi, Ricardo D Coletta, and Hercílio Martelli-Júnior on the recent publication of Knowledge and attitudes about rare genetic diseases among practitioners of oral medicine/pathology in Brazil: a cross-sectional study in Frontiers in Oral Health.

• Congratulations to the team of Aasiyah Rashan, Daniel P Püttmann, Nicolette F de Keizer, Dave A Dongelmans, Ronald Cornet, Otavio Ranzani, Wangari Waweru-Siika, Matthew Smith, Steve Harris, Abi Beane, Ferishta Bakhshi-Raiez; Collaboration for Research, Implementation and Training in Critical Care—Asia and Africa Investigators, and the Dutch National Intensive Care Registry on the recent publication of Using the Observational Medical Outcomes Partnership Common Data Model for a multi-registry intensive care unit benchmarking federated analysis: lessons learned in JAMIA Open.

• Congratulations to the team of Clair Blacketer, Frank J DeFalco, Mitchell M Conover, Patrick B Ryan, Martijn J Schuemie, and Peter R Rijnbeek on the recent publication of Evaluation of the impact of defining observable time in real-world data on outcome incidence in JAMIA.

• Congratulations to the team of Vinícius João de Barros Vanzin, Dilvan de Abreu Moreira, Ricardo Marcondes Marcacini on the recent publication of LLM-based approaches for automated vocabulary mapping between SIGTAP and OMOP CDM concepts in Artificial Intelligence in Medicine.

• On August 12, we will host our annual “Meet OHDSI Newcomers” community call. If you are relatively new to the community or hope to have a bigger role, this is a great opportunity to introduce yourself. Please tell us who you are and where you work, what are your research interests, how you hope to help the community, and how OHDSI can help your own research journey. For scheduling purposes, please note your interest in taking part in this brief survey.

• Thank you to everybody in the community who submitted brief reports. We had more than 150 submissions for our #OHDSI2025 Collaborator Showcase, which will be held Oct. 8 as part of the Global Symposium (more information below).

• All resources, including videos, posters and abstracts from the OHDSI Europe Symposium are now available on the event homepage.

• Tiffany Callahan (Senior Machine Learning Research Scientist at SandboxAQ) will provide a talk (July 31, 11 am ET) on ‘Agentic Mixture-of-Workflows for Multi-Modal Chemical Search’ during the next edition of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine speaker series. This will be held on Zoom; please reach out to Marty Alvarez ([email protected]) if you are interested in joining the session.

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials
An Introduction to the Journey from Data to Evidence Using OHDSI
Lead: Erica Voss

OHDSI 2025 Afternoon Tutorials
Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Lead: Clair Blacketer
Using the OHDSI Standardized Vocabularies for Research
Lead: Anna Ostropolets
Clinical Characterization Applications to Generate Reliable Real-World Evidence
Lead: Patrick Ryan
Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Lead: George Hripcsak
Patient-Level Prediction Applications to Generate Reliable Real-World Evidence 
Lead: Jenna Reps

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. The abstract submission deadline will be Sept. 10. Agenda details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. The abstract submission deadline will be August 25. More details will be shared when available.

OHDSI Social Showcase

• Research from both the 2024 UK and the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Comparative Analysis of the Natural History and Outcomes of Early-Onset and Late-Onset Colorectal Cancer (Rita Rb-Silva)
Tuesday — Trends in the incidence of large and medium vessel occlusion acute ischemic stroke: a population-based study protocol (João Sargento-Freitas)
Wednesday — Retrospective impact of varying uptake of heart failure risk factors treatments: a cross-sectional study protocol using primary care and hospital data (Mário Santos)
Thursday — New Psychoactive Substances in the Autonomous Region of Madeira: a cohort study protocol (Licínio Santos)

Friday — Associations between sedation, analgesia practices and complications in ventilated patients: A Protocol of a 10-year Real-World Observational Study (Raúl Cordeiro)

Slides

FHIR to OMOP Ballot Call to Action | Community Updates

Video Presentations

Asia-Pacific Regional Updates

FHIR to OMOP Ballot Call to Action

Our community has published more than 800 studies related to OHDSI or OMOP, and four lead authors shared their recent publications during our July 22 community call.

David Sarrat-González/Juan R. González • Barcelona Institute for Global Health
dsOMOP: bridging OMOP CDM and DataSHIELD for secure federated analysis of standardized clinical data

Justin Bohn • Johnson & Johnson
Large-scale Empirical Identification of Candidate Comparators for Pharmacoepidemiological Studies

Dachung Boo • Yonsei University College of Medicine
Comprehensive Evaluation of Treatment Patterns in Postmenopausal Patients with Osteoporosis without Fractures: Insights from Tertiary Care Institutions and Nationwide OMOP-CDM Data

Seonji Kim • Yonsei University College of Medicine
Impact of Regulatory Post-Market Safety Advisories on Prescribing Practices: An Interrupted Time Series Analysis

Community Updates

• Congratulations to the team of Woo Yeon Park, Teri Sippel Schmidt, Gabriel Salvador, Kevin O’Donnell, Brad Genereaux, Kyulee Jeon, Seng Chan You, Blake E Dewey, Paul Nagy, and the Alzheimer’s Disease Neuroimaging Initiative on the recent publication of Breaking data silos: incorporating the DICOM imaging standard into the OMOP CDM to enable multimodal research in JAMIA.

• Congratulations to the team of Jiayi Tong, Jenna M. Reps, Chongliang Luo, Yiwen Lu, Lu Li, Juan Manuel Ramirez-Anguita, Milou T. Brand, Scott L. DuVall, Thomas Falconer, Alex Mayer Fuentes, Xing He, Michael E. Matheny, Miguel A. Mayer, Bhavnisha K. Patel, Katherine R. Simon, Marc A. Suchard, Guojun Tang, Benjamin Viernes, Ross D. Williams, Mui van Zandt, Fei Wang, Jiang Bian, Jiayu Zhou, David A. Asch and Yong Chen on the recent publication of Unlocking efficiency in real-world collaborative studies: a multi-site international study with one-shot lossless GLMM algorithm in NPJ Digital Medicine.

• On August 12, we will host our annual “Meet OHDSI Newcomers” community call. If you are relatively new to the community or hope to have a bigger role, this is a great opportunity to introduce yourself. Please tell us who you are and where you work, what are your research interests, how you hope to help the community, and how OHDSI can help your own research journey. For scheduling purposes, please note your interest in taking part in this brief survey.

• Thank you to everybody in the community who submitted brief reports. We had more than 150 submissions for our #OHDSI2025 Collaborator Showcase, which will be held Oct. 8 as part of the Global Symposium (more information below).

• All resources, including videos, posters and abstracts from the OHDSI Europe Symposium are now available on the event homepage.

• Tiffany Callahan (Senior Machine Learning Research Scientist at SandboxAQ) will provide a talk (July 31, 11 am ET) on ‘Agentic Mixture-of-Workflows for Multi-Modal Chemical Search’ during the next edition of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine speaker series. This will be held on Zoom; please reach out to Marty Alvarez ([email protected]) if you are interested in joining the session.

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials
An Introduction to the Journey from Data to Evidence Using OHDSI
Lead: Erica Voss

OHDSI 2025 Afternoon Tutorials
Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Lead: Clair Blacketer
Using the OHDSI Standardized Vocabularies for Research
Lead: Anna Ostropolets
Clinical Characterization Applications to Generate Reliable Real-World Evidence
Lead: Patrick Ryan
Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Lead: George Hripcsak
Patient-Level Prediction Applications to Generate Reliable Real-World Evidence 
Lead: Jenna Reps

• The first-ever 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda, and registration is open. The abstract submission deadline will be Sept. 10. Agenda details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. The abstract submission deadline will be August 25. More details will be shared when available.

OHDSI Social Showcase

• Research from both the 2024 UK and the 2025 Europe Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Adoption of the OMOP Common Data Model in the UK (Alex Knight)
Tuesday — OMOP model evaluation for representing GENIE oncology research project data (Vojtech Huser)
Wednesday — Cardiovascular Effects of SGLT2 Inhibitors in Advanced CKD: A Real-World Cohort Study Using TMUCRD OMOP-CDM and OHDSI Tools— A Foundation for Future Multinational OHDSI Network Collaboration (Christianus Heru Setiawan)
Thursday — Accelerating OMOP Common Data Model Adoption for Sustainable Cross-National Atopic Dermatitis Research: Implementation Across Five European Registers (Axel Hertzschuch)
Friday — Large-Scale Network Study on the Impact of Immune Checkpoint Therapy in Metastatic Non-Small Cell Lung Cancer: The iCAN mNSCLC Study-a-Thon (Simon Thompson)

Slides

Gonzalez | Bohn | Boo | Kim | Community Updates

Video Presentations

dsOMOP: bridging OMOP CDM and DataSHIELD for secure federated analysis of standardized clinical data

Large-scale Empirical Identification of Candidate Comparators for Pharmacoepidemiological Studies

Comprehensive Evaluation of Treatment Patterns in Postmenopausal Patients with Osteoporosis without Fractures: Insights from Tertiary Care Institutions and Nationwide OMOP-CDM Data

Impact of Regulatory Post-Market Safety Advisories on Prescribing Practices: An Interrupted Time Series Analysis

The 2025 OHDSI Europe Symposium was a fantastic event that highlighted many of the innovations and collaborations taking place across the continent. Symposium host Liesbet Peeters led a review session, which included comments from Renske Los, Dipak Kalra and Peter Rijnbeek during the July 15 community call. All resources from the OHDSI Europe Symposium will be made available on the event homepage. Watch for collaborator showcase research from #OHDSIEurope2025 to be highlighted soon on all of OHDSI’s social channels!

Community Updates

• Congratulations to the team of Rachelle Haber, Michael Webster-Clark, Nicole Pratt, Nicola Barclay, Xue Li, Judith C. Maro, Robert W. Platt, Daniel Prieto-Alhambra, and Kristian B. Filion on the recent publication of Core Concepts in Pharmacoepidemiology: Multi-Database Distributed Data Networks in Pharmacoepidemiology and Drug Safety.

• Congratulations to the team of Matthew Spotnitz, John Giannini, Emily Clark, Yechiam Ostchega, Tamara R Litwin, Stephanie L Goff, and Lew Berman on the recent publication of Assessing the Data Quality Dimensions of Surgical Oncology Cohorts in the All of UsResearch Program in JCO Clinical Cancer Informatics.

• Congratulations to the team of Maksym Trofymenko, Eduard Korchmar, Denys Kaduk, Marta Vikhrak, Bohdan Khilchevskyi, Tetiana Nesmiian, Polina Talapova, Max Ved and Inna Ageeva on the recent publication of Jackalope Plus tool for post-coordination, ontology development, and precise mapping in observational health studies in Scientific Reports.

• Congratulations to the team of Naroa Mendez, Eduardo Alonso, Moisés David Espejo, Maite López, Maykel Alonso-Arce, Eñaut Rojo, Alba Garin-Muga on the publication of Harmonizing Electronic Health Records to the OMOP Common Data Model: A Case Study on Surgical Complications in Volume 328 of Studies in Health Technology and Informatics: Global Healthcare Transformation in the Era of Artificial Intelligence and Informatics.

• Thank you to everybody in the community who submitted brief reports. We had nearly 150 submissions for our #OHDSI2025 Collaborator Showcase, which will be held Oct. 8 as part of the Global Symposium (more information below).

• Cindy Cai, a 2024 Titan Award winner and co-lead of the Eyecare and Vision Research workgroup, announced a new network study to research whether semaglutide is associated with neovascular age-related macular degeneration. This study follows up on a recent JAMA Ophthalmology publication. If you are interested in collaborating or learning more, please join the Eyecare and Vision Research workgroup.

• Tiffany Callahan (Senior Machine Learning Research Scientist at SandboxAQ) will provide a talk (July 31, 11 am ET) on ‘Agentic Mixture-of-Workflows for Multi-Modal Chemical Search’ during the next edition of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine speaker series. This will be held on Zoom; please reach out to Marty Alvarez ([email protected]) if you are interested in joining the session.

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Registration for the Global Symposium is open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials

An Introduction to the Journey from Data to Evidence Using OHDSI
Lead: Erica Voss

OHDSI 2025 Afternoon Tutorials

Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Lead: Clair Blacketer

Using the OHDSI Standardized Vocabularies for Research
Lead: Anna Ostropolets

Clinical Characterization Applications to Generate Reliable Real-World Evidence
Lead: Patrick Ryan

Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Lead: George Hripcsak

Patient-Level Prediction Applications to Generate Reliable Real-World Evidence 
Lead: Jenna Reps

• The 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda. The abstract submission deadline will be Sept. 10. More details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. The abstract submission deadline will be August 25. More details will be shared when available.

OHDSI Social Showcase

• Research from both the 2024 APAC and UK Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Electronic Frailty index and hazard of with MACE event in patients with Type 2 diabetes mellitus (Da Eun Hyeon)
Tuesday —An international multi-centre federated-network data analysis using routine health data (EHR) investigating disparities in care for patients with scaphoid fractures (Usama Rahman)
Wednesday — Standardisation of Multi-Agency Data to the OMOP Common Data Model (Rachel Sippy)
Thursday — Lessons Learned from Mapping UK Pain Datasets to the OMOP CDM (Christian Cole)
Friday — London Secure Data Environment (SDE) Primary Care Data OMOP Mapping (Taryn Aspeling)

Slides

European Symposium Review | Community Updates

Video Presentation 

The final session of the ATLAS deepdive focused on the technical and administrative functions of ATLAS. These functions revolve around security, data source configuration, tag management, and more. ATLAS workgroup co-leads Christopher Knoll (Director, Observational Health Data Analytics, Janssen R&D) and Konstantin Iaroshovets (Product Ops Manager, Odysseus Data Services, Inc.) led this session, which will include a demo and an introduction to the final survey.

You can complete Survey 5 here.

Community Updates

• Congratulations to the team of Alexander Saelmans, Tom Seinen, Victor Pera, Aniek F. Markus, Egill Fridgeirsson, Luis H. John, Lieke Schiphof-Godart, Peter Rijnbeek, Jenna Reps, and Ross Williams on the recent publication of Implementation and Updating of Clinical Prediction Models: A Systematic Review in Mayo Clinic Proceedings: Digital Health.

• Congratulations to the team of Richard Noll, Alexandra Berger, Carlo Facchinello, Katharina Stratmann, Jannik Schaaf, and Holger Storf on the publication of Enhancing diagnostic precision for rare diseases using case-based reasoning in JAMIA.

• General registration for the 2025 Global Symposium is now open! You are now able to register for any of the tutorials as well. There will be an introductory tutorial during the morning session, and five advanced tutorials during the afternoon session.

OHDSI 2025 Morning Tutorials

An Introduction to the Journey from Data to Evidence Using OHDSI
Lead: Erica Voss

OHDSI 2025 Afternoon Tutorials

Developing and Evaluating Your Extract, Transform, Load (ETL) Process to the OMOP Common Data Model
Lead: Clair Blacketer

Using the OHDSI Standardized Vocabularies for Research
Lead: Anna Ostropolets

Clinical Characterization Applications to Generate Reliable Real-World Evidence
Lead: Patrick Ryan

Population-Level Effect Estimation Applications to Generate Reliable Real-World Evidence
Lead: George Hripcsak

Patient-Level Prediction Applications to Generate Reliable Real-World Evidence
Lead: Jenna Reps

• Cindy Cai, a 2024 Titan Award winner and co-lead of the Eyecare and Vision Research workgroup, announced a new network study to research whether semaglutide is associated with neovascular age-related macular degeneration. This study follows up on a recent JAMA Ophthalmology publication. If you are interested in collaborating or learning more, please join the Eyecare and Vision Research workgroup.

• Tiffany Callahan (Senior Machine Learning Research Scientist at SandboxAQ) will provide a talk (July 31, 11 am ET) on ‘Agentic Mixture-of-Workflows for Multi-Modal Chemical Search’ during the next edition of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine speaker series. This will be held on Zoom; please reach out to Marty Alvarez ([email protected]) if you are interested in joining the session.

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

• The agenda for the 2025 OHDSI Europe Symposium (July 5-7) is available on its main page. The main conference will be held July 7, while tutorials and workshops are set for July 5-6. Registration is open and available on the homepage.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda. The abstract submission deadline will be August 25. More details will be shared when available.

• The 2025 OHDSI Asia-Pacific Symposium will be held Dec. 6-7 in Shanghai, China. The abstract submission deadline will be August 25. More details will be shared when available.

OHDSI Social Showcase

• Research from both the 2024 APAC and UK Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Electronic Frailty index and hazard of with MACE event in patients with Type 2 diabetes mellitus (Da Eun Hyeon)
Tuesday —An international multi-centre federated-network data analysis using routine health data (EHR) investigating disparities in care for patients with scaphoid fractures (Usama Rahman)
Wednesday — Standardisation of Multi-Agency Data to the OMOP Common Data Model (Rachel Sippy)
Thursday — Lessons Learned from Mapping UK Pain Datasets to the OMOP CDM (Christian Cole)
Friday — London Secure Data Environment (SDE) Primary Care Data OMOP Mapping (Taryn Aspeling)

Slides

ATLAS Deepdive: Technical and Administrative Capabilities | Community Updates

Video Presentation 

ATLAS offers powerful tools to help researchers better understand patient populations through characterization, incidence, and treatment pathways. During the June 24 OHDSI Community Call, Christopher Knoll (Director, Observational Health Data Analytics, Janssen R&D and ATLAS Workgroup Lead) provided a brief explanation and demo of these capabilities. He also introduced a survey to gather your feedback on how often you use these features, and how important they are to your work.

You can complete Survey 4 here.

Community Updates

• One Week Away! The submission deadline for the 2025 Collaborator Showcase is July 1 (8 pm ET). The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• Your input matters. Thank you to everyone who has participated in our weekly surveys; your insights are helping shape the future of ATLAS. If you haven’t had a chance yet, there’s still time to make your voice heard. We look forward to your participation!

Surveys: Overview | Data Sources/Vocabulary | Concept Sets/Cohorts | Characterization/Incidence/Treatment Pathways

• General registration for the 2025 Global Symposium is now open!

• Cindy Cai, a 2024 Titan Award winner and co-lead of the Eyecare and Vision Research workgroup, announced a new network study to research whether semaglutide is associated with neovascular age-related macular degeneration. This study follows up on a recent JAMA Ophthalmology publication. If you are interested in collaborating or learning more, please join the Eyecare and Vision Research workgroup.

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

• The agenda for the 2025 OHDSI Europe Symposium (July 5-7) is available on its main page. The main conference will be held July 7, while tutorials and workshops are set for July 5-6. Registration is open and available on the homepage.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The 2025 OHDSI Africa Symposium will be held Nov. 10-12 in Kampala, Uganda. The abstract submission deadline will be August 25. More details will be shared when available.

OHDSI Social Showcase

• Research from the 2024 APAC Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Electronic Frailty index and hazard of with MACE event in patients with Type 2 diabetes mellitus (Da Eun Hyeon)
Tuesday — An Explorative Study about the Latent Space of Clinical Foundation Models Based on a Common Data Model Database (Min-Gyu Kim)
Wednesday — Causal Learning with Large-Scale Propensity Scores to Predict Treatment Outcomes: A Study of Arrhythmia in Adolescents with Attention-deficit/hyperactivity disorder (Junhyuk Chang)
Thursday — Leveraging Large Language Model for Populating OMOP Oncology CDM from the EHR: Feasibility Study (Subin Kim)
Friday — Exploring Stroke and Cognitive Impaired Patients Using Apache Superset on OMOP OHDSI Dataset (Muhammad Solihuddin Muhtar)

Slides

ATLAS Deepdive: Characterization, Incidence,and Treatment Pathways | Community Updates

Video Presentation 

ATLAS is a free, publicly available, web-based tool developed by the OHDSI community that facilitates the design and execution of analyses on standardized, patient-level, observational data in the OMOP CDM format. Throughout June, OHDSI community calls will focus on the capabilities of the tool, while also brainstorming the roadmap for future versions.

In this third presentation, ATLAS workgroup lead Christopher Knoll and University of Pittsburgh Associate Professor Richard Boyce discuss the concept set and cohort definition sections in the ATLAS tool. This session included a live demo and introduced the third survey to help design the roadmap for ATLAS.

You can complete Survey 3 here.

Community Updates

• Congratulations to the team of Meghan L. McCarthy, Jonah Bradenday, Elizabeth Chen, Mark R. Zonfrillo, and Indra Neil Sarkar on the recent publication of Reductions in Blood Lead Level Screening During Peak COVID-19 Restrictions and Beyond in Public Health Challenges.

• Congratulations to the team of Zhang Meng, Shen Peng, Liu Zhike, Van Zandt Mui, Li Jing, Li Chao, Sun Yexiang, Xie Junqing, Wan Eric Yuk Fai, George Hripcsak, Chen Yong, Lin Hongbo, Zhan Siyan, and Sun Feng on the recent publication of Study of application of Common Data Model of Observational Medical Outcomes Partnership in China in the Chinese Journal of Epidemiology.

• Congratulations to the team of Jacob S Zelko and Justin Manjourides on the recent publication of A Generalized Tool to Assess Algorithmic Fairness in Disease Phenotype Definitions in the Proceedings — AMIA Joint Summits on Translational Science.

• Congratulations to the team of Seok Kim, Dachung Boo, Sooyoung Yoo, Borham Kim, Kyubo Kim, Kwangsoo Kim, Eunhye Song, Junmo Kim, Hyun Gee Ryoo, Jin Chul Paeng, In Young Choi, SooJeong Ko, Ie Ryung Yoo, Rae Woong Park, and Ho-Young Lee on the recent publication of Secondary Cancer Risk in Breast Cancer with and without Radiotherapy: The Observational Health Data Sciences and Informatics (OHDSI) Cohort Study in Cancer Research and Treatment.

• Congratulations to the team of Kim López-Güell, Martí Català, Daniel Dedman, Talita Duarte-Salles, Raivo Kolde, Raúl López-Blasco, Álvaro Martínez, Gregoire Mercier, Alicia Abellan, Johnmary T. Arinze, Theresa Burkard, Edward Burn, Zara Cuccu, Antonella Delmestri, Dominique Delseny, Sara Khalid, Chungsoo Kim, Ji-woo Kim, Kristin Kostka, Cora Loste, Miguel A. Mayer, Jaime Meléndez-Cardiel, Núria Mercadé-Besora, Mees Mosseveld, Akihito Nishimura, Hedvig ME. Nordeng, Jessie O. Oyinlola, Roger Paredes, Laura Pérez-Crespo, Marta Pineda-Moncusí, Juan Manuel Ramírez-Anguita, Nhung TH. Trinh, Anneli Uusküla, Bernardo Valdivieso, Daniel Prieto-Alhambra, Junqing Xie, Lourdes Mateu, and Annika M. Jödicke on the recent publication of Clusters of post-acute COVID-19 symptoms: a latent class analysis across 9 databases and 7 countries in the Journal of Clinical Epidemiology.

• Two Weeks Away! The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• General registration for the 2025 Global Symposium is now open!

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

• The agenda for the 2025 OHDSI Europe Symposium (July 5-7) is available on its main page. The main conference will be held July 7, while tutorials and workshops are set for July 5-6. Registration is open and available on the homepage.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here. 

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. The agenda for all three days is available on the website.

Job Openings

• Johnson & Johnson is hiring a Manager, Observational Health Data Analytics, in its Raritan, N.J., office. This candidate will work within the Global Epidemiology Organization (GEO) and contribute to the successful delivery of observational analyses for clinical characterization, population-level effect estimation, and patient-level prediction, as well as to the design of observational database analysis, including authoring protocol and analysis plans, and other responsibilities. More details and an application link are available here.

OHDSI Social Showcase

• Research from the 2024 APAC Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Prediction of Hyponatremia in Cancer Patients Using Machine Learning Based on Oncology CDM (Yeji Lee)
Tuesday — Trend analysis in Prevalence of Dementia Medications: a perspective from Taipei Medical University (Septi Melisa)
Wednesday — Predicting outcome in emergency room patients with Suspected Gastrointestinal Infection using OMOP-CDM (So Hee Lee)
Thursday — A Graphical Interface and Workflow Engine for OHDSI Network Study design and execution (Sivanaga Sai Krishna Santan Maddi)</strong
Friday — Explore the opinions and attitudes of the application of common data models in regional databases from the perspective of Chinese people (Yexian Yu)

Slides

ATLAS Deepdive: Cohorts and Concept Sets | Community Updates

Video Presentation 

ATLAS is a free, publicly available, web-based tool developed by the OHDSI community that facilitates the design and execution of analyses on standardized, patient-level, observational data in the OMOP CDM format. Throughout June, OHDSI community calls will focus on the capabilities of the tool, while also brainstorming the roadmap for future versions.

In this second presentation, ATLAS workgroup leads Christopher Knoll and Alexey Manoylenko discuss the aspects of data sources and vocabularies within ATLAS. Manoylenko led a short run-through of the data sources reports and search functions using the Atlas UI, and then he went over the Week 2 Survey questions, as the ATLAS team continues to seek global community feedback as it plans the future roadmap for ATLAS. You can complete Survey 2 here.

Community Updates

• Congratulations to the team of Justin Bohn, James Gilbert, Christopher Knoll, David Kern, and Patrick Ryan on the recent publication of Large-scale Empirical Identification of Candidate Comparators for Pharmacoepidemiological Studies in Drug Safety.

• Three Weeks Away! The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• General registration for the 2025 Global Symposium is now open!

• OHDSI is now on Bluesky! You can now get updates on all community activities and see all global research through the #OHDSISocialShowcase on Bluesky.

• The agenda for the 2025 OHDSI Europe Symposium (July 5-7) is available on its main page. The main conference will be held July 7, while tutorials and workshops are set for July 5-6. Registration is open and available on the homepage.

• The ATLAS working group has put together a short survey to identify how the data sources and vocabulary features in ATLAS are being used, and to measure the value of those features to the global community. Please fill out the survey by Monnday, June 16.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. The agenda for all three days is available on the website.

Job Openings

• Johnson & Johnson is hiring a Manager, Observational Health Data Analytics, in its Raritan, N.J., office. This candidate will work within the Global Epidemiology Organization (GEO) and contribute to the successful delivery of observational analyses for clinical characterization, population-level effect estimation, and patient-level prediction, as well as to the design of observational database analysis, including authoring protocol and analysis plans, and other responsibilities. More details and an application link are available here.

OHDSI Social Showcase

• Research from the 2024 APAC Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Characterizing Asian and Pacific Islander Veterans and Veterans Living Outside the United States (Scott DuVall)
Tuesday — Challenges in Conducting Federated Analysis in CyberOncology Project in Japan (Shigemi Matsumoto)
Wednesday — From dbt to SQLMesh: Enhancing OMOP CDM Data Conversion Efficiency (Nongnaphat Wongpiyachai)
Thursday — Applying the OMOP Common Data Model to Facilitate Benefit-Risk Assessments of Medicinal Products Using Real-World Data from Singapore and South Korea (Hui Xing Tan)
Friday — Protective Effects of SGLT2 Inhibitors on Cardiovascular-Kidney-Metabolic (CKM) Syndrome Progression in Type 2 Diabetes with Chronic Kidney Disease: A Multi-Center Data Analysis Using OMOP-CDM  (Nguyen Phung-Anh)

Slides

ATLAS Deepdive: Data Sources and Vocabularies | Community Updates

Video Presentation 

ATLAS is a free, publicly available, web-based tool developed by the OHDSI community that facilitates the design and execution of analyses on standardized, patient-level, observational data in the OMOP CDM format. Throughout June, our community calls will focus on the capabilities of the tool, while also brainstorming the roadmap for future versions.

ATLAS workgroup lead Christopher Knoll (Director, Observational Health Data Analytics, Janssen Research and Development) opened the month with a look at ‘The Journey of Atlas.’

Community Updates

• Congratulations to the team of Kyoung Jin Kim, Dachung Boo, Jimi Choi, Hyemin Yoon, Chai Young Jung, Seong Hee Ahn, Namki Hong, Beom-Jun Kim, Ji Seon Oh, and Seng Chan You on the recent publication of Comprehensive Evaluation of Treatment Patterns in Postmenopausal Patients with Osteoporosis without Fractures: Insights from Tertiary Care Institutions and Nationwide OMOP-CDM Data in Endocrinology and Metabolism.

• The June edition of The Journey Newsletter is now available, and it includes a look ahead at the 2025 Europe Symposium, video presentations on the ongoing guideline-driven evidence studies, the monthly video podcast, a new collaborator spotlight, 16 May publications and plenty more. If you don’t receive the newsletter in your email feed, you can subscribe here.

• Liesbet M. Peeters is an assistant professor at Hasselt University, where she bridges biomedical research, data science, and policy to shape responsible, people-centered health data ecosystems. Her efforts aim to strengthen data quality, integration, and visualization across complex, multicenter real-world datasets. In the latest edition of the Collaborator Spotlight, Liesbet discusses her career journey, her work with EHDEN and the Belgium National Node, as well as what to expect from the 2025 Europe Symposium, which she will lead this summer.

• General registration for the 2025 Global Symposium is now open!

• The agenda for the 2025 OHDSI Europe Symposium (July 5-7) is available on its main page. The main conference will be held July 7, while tutorials and workshops are set for July 5-6. Registration is open and available on the homepage.

• The ATLAS working group has put together a short survey to help identify who is using ATLAS in our community. If you are not using ATLAS, please also fill in this survey to help identify any barriers for adoption in your company/institution. Additionally, this survey will ask if you’d like to be interviewed for feedback on your usage of ATLAS. Data4Life is working closely with the working group to conduct interviews (~1hr) that will help inform the future direction of the application.

• The OHDSI UK Conference will be held September 26 at the Wellcome headquarters in London. More details and registration information are available here. The deadline to submit your abstract for the conference is Friday, May 9; please use this link to submit.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

• The next seminar from the Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine will be held Thursday, May 29, at 9-10 am ET. Georgie Kennedy, Senior Research Fellow at the University of New South Wales and the Ingham Institute, will provide a talk on “Learning from Real-World Cancer Data: Maturing data pipelines to support research that impacts clinical care.” Please contact Marty Alvarez at [email protected] for calendar invite or questions.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. The agenda for all three days is available on the website.

Job Openings

• Johnson & Johnson is hiring a Manager, Observational Health Data Analytics, in its Raritan, N.J., office. This candidate will work within the Global Epidemiology Organization (GEO) and contribute to the successful delivery of observational analyses for clinical characterization, population-level effect estimation, and patient-level prediction, as well as to the design of observational database analysis, including authoring protocol and analysis plans, and other responsibilities. More details and an application link are available here.

OHDSI Social Showcase

• Research from the 2024 APAC Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Incidence, prevalence and treatment pattern of Parkinson disease from Taipei Medical University: an integration of open-software analytic tools (Phan Thanh-Phuc)
Tuesday — Enhancing Infectious Disease Data Integration and management through OMOP-CDM in South Korea (Min Ho An)
Wednesday — Enabling i2b2 on OMOP CDM Cohort Data semi-automatically by using Atlas and SQLMesh (Natpatchara Pongjirapat)
Thursday — The association between comorbid depression in type 2 diabetes to cardiovascular disease: A cohort OHDSI study (Christianus Heru Setiawan)
Friday — Atlas on Cloud: Utilizing modern cloud infrastructure for hosting OMOP tools (Natpatchara Pongjirapat)

Slides

The Journey of ATLAS | Community Updates

Video Presentation 

The Journey of ATLAS

ATLAS Survey 1

The Collaborator Showcase is a centerpiece of the OHDSI Global Symposium, celebrating the incredible range of research across our global community. With the July 1 submission deadline just over a month away, many have already begun preparing their work, so we used the May 27 community call as an opportunity to refine your ideas and provide feedback to others. This interactive session included small-group breakouts where people can brainstorm potential submissions, exchange ideas, and connect with fellow collaborators excited to share their work in the #OHDSI2025 Collaborator Showcase.

Prior to the breakouts, Amberlynn Reed, Assistant Director of the Office of Data Science and Health Informatics at the National Eye Institute, National Institutes of Health, joined the call to honor the winners of the “Expand OHDSI Initiative for Eye Care and Ocular Imaging Challenge,” a $1 million challenge aimed at integrating eye care and ocular imaging data into studies using large healthcare datasets in biomedical research. That video is posted below.

Community Updates

• Congratulations to the team of Sara Bachir, Abishaa Vengadeswaran, Holger Storf, and Dennis Kadioglu on the recent publication of Metadata-Driven Approach to Generalisation of Transformations in ETL Processes in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Elisa Henke, Michele Zoch, Yuan Peng, Mirko Gruhl, and Martin Sedlmayr on the recent publication of From Fragmentation to Integration: Challenges and Solutions for Record Linkage in OMOP CDM in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Alexandros Rekkas, Anastasia Farmaki, Achilleas Chytas, Antonios Lazaridis, Eugenia Gkaliagkousi, Pantelis Natsiavas on the recent publication of Preliminary Results of an OMOP-CDM Based Characterization Study for Rhabdomyolysis in Greece in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Adnan Jouned, Heike Düsseldorf, Florian Katsch, Maryam Jafarpour, and Georg Duftschmid on the recent publication of Comparative Study of ETL Tools for Transforming Healthcare Data to the OMOP Common Data Model (CDM) in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Achim Michel-Backofen, Romina Blasini, Jördis Beck, and Kurt Marquardt on the recent publication of Building a Research Infrastructure with REDCap and FHIR in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Prabath Jayathissa, Lukas Rohatsch, Stefan Sauermann, and Rada Hussein on the recent publication of OMOP-on-FHIR: Integrating the Clinical Data Through FHIR Bundle to OMOP CDM in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Seyedmostafa Sheikhalishahi, Johanna Schwinn, Matthaeus Morhart, Mathias Kaspar, and Ludwig Christian Hinske on the recent publication of Federated Learning for Predictive Analytics in Weaning from Mechanical Ventilation in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Hyesil Jung, Seok Kim, and Sooyoung Yoo on the recent publication of Conversion of Nursing Statements into the OMOP Common Data Model in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Johanna Schwinn, Seyedmostafa Sheikhalishahi, Matthaeus Morhart, Mathias Kaspar, and Ludwig Christian Hinske on the recent publication of A Federated Learning Model for the Prediction of Blood Transfusion in Intensive Care Units in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Angela Leis, Philippe Mortier, Franco Amigo, Madhav Bhargav, Susana Conde, Montserrat Ferrer, Oskar Flygare, Busenur Kizilaslan, Laura Latorre Moreno, Miguel-Angel Mayer, Víctor Pérez Sola, Ana Portillo van Diest, Juan Manuel Ramírez-Anguita, Ferran Sanz, Gemma Vilagut, Jordi Alonso, Lars Mehlum, Ella Arensman, Johan Bjureberg, Manuel Pastor, and Ping Qin on the recent publication of Machine Learning-Based Clinical Decision Support System for Suicide Risk Management: The PERMANENS Project in Volume 327 of Studies in Health Technology and Informatics: Intelligent Health Systems – From Technology to Data and Knowledge.

• Congratulations to the team of Jongchan Park, Hye Jin Chang, Kyung Joo Hwang, Sun Hyung Yum, Chang Eun Park, Joo Hee Kim, and Miran Kim on the recent publication of Association of COX-2 Selectivity in Pain Medication Use with Endometriosis Incidence: Retrospective Cohort Study in the Yonsei Medical Journal.

• Congratulations to the team of Xinyu Zhou, Lovedeep Singh Dhingra, Arya Aminorroaya, Philip Adejumo, and Rohan Khera on the publication of A Novel Sentence Transformer-based Natural Language Processing Approach for Schema Mapping of Electronic Health Records to the OMOP Common Data Model in the AMIA Annual Symposium Proceedings Archive.

• Congratulations to the team of Yuanzhen Yue, Ashok Khanal, Tianchu Lyu, Sharon Weissman, and Chen Liang on the publication of EHR Phenotyping Methods for Measuring Treatment Adherence Among People Living With HIV in All of Us: Towards Disparities and Inequalities in HIV Care Continuum in the AMIA Annual Symposium Proceedings Archive.

• Congratulations to the team of Xiaojin Li, Yan Huang, Licong Cui, Shiqiang Tao, and Guo-Qiang Zhang on the recent publication of Optimizing Medication Querying Using Ontology-Driven Approach with OMOP: with an application to a large-scale COVID-19 EHR dataset in the AMIA Annual Symposium Proceedings Archive.

• The Industry Workgroup is hosting a two-day in-person studyathon, though it may also have a virtual component, May 29-30 in the Gilead Office in Troy Hills, N.J. You can register here, and more information the event is available here.

• The agenda for the 2025 OHDSI Europe Symposium (July 5-7) is available on its main page. The main conference will be held July 7, while tutorials and workshops are set for July 5-6. Registration is open and available on the homepage.

• The ATLAS working group has put together a short survey to help identify who is using ATLAS in our community. If you are not using ATLAS, please also fill in this survey to help identify any barriers for adoption in your company/institution. Additionally, this survey will ask if you’d like to be interviewed for feedback on your usage of ATLAS. Data4Life is working closely with the working group to conduct interviews (~1hr) that will help inform the future direction of the application.

• The OHDSI UK Conference will be held September 26 at the Wellcome headquarters in London. More details and registration information are available here. The deadline to submit your abstract for the conference is Friday, May 9; please use this link to submit.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

• The next seminar from the Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine will be held Thursday, May 29, at 9-10 am ET. Georgie Kennedy, Senior Research Fellow at the University of New South Wales and the Ingham Institute, will provide a talk on “Learning from Real-World Cancer Data: Maturing data pipelines to support research that impacts clinical care.” Please contact Marty Alvarez at [email protected] for calendar invite or questions.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. The agenda for all three days is available on the website.

Job Openings

• Johnson & Johnson is hiring a Manager, Observational Health Data Analytics, in its Raritan, N.J., office. This candidate will work within the Global Epidemiology Organization (GEO) and contribute to the successful delivery of observational analyses for clinical characterization, population-level effect estimation, and patient-level prediction, as well as to the design of observational database analysis, including authoring protocol and analysis plans, and other responsibilities. More details and an application link are available here.

OHDSI Social Showcase

• Research from the 2024 APAC Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Asian and/or Pacific Islander: Unmasking health disparity within commonly aggregated diverse populations in the US Department of Veterans Affairs (Benjamin Viernes)
Tuesday — Comparative Study of Informer, Prophet, and SARIMA Time Series Forecasting Models for Predicting Pneumonia-Related Hospitalizations and Emergency Room Visits in Elderly Patients Using OMOP-CDM (Seonghwan Shin)
Wednesday — Exploring the interplay between metabolic syndrome and brain volume in depression: Basis for Phenotype-Based Classification (Sujin Gan)
Thursday — Oncology Incidence and Prevalence Trends 2005-2021 within the TMUCRD using OHDSI-validated OMOP CMD Standards (Whitney Burton)
Friday — Evaluating the Conversion of EHR data into OMOP CDM for Type 2 Diabetes Mellitus Cohort: Insights for Data Consistency (Burin Boonwatcharapai)

Slides

Community Updates

Video Presentation (Eye Care & Ocular Imaging Challenge)

Clinical guidelines don’t just recommend treatments—they reveal where evidence is missing. In 2025, OHDSI launched an initiative to turn those gaps into research questions, driving real-world studies across the OHDSI Evidence Network. During our May 20 community call, 10 study leads joined to provide updates and discuss next steps and how others can collaborate. (Timestamps are for video below)

0:00 – Bladder Cancer Treatment (Asieh Golozar)
5:05 – Schizophrenia Pharmacotherapy (Tatsiana Skugarevskaya)
9:00 – Osteoporosis Management (Chen Yanover)
12:53 – Rheumatology DMARD Infection Management (Christopher Mecoli)
17:24 – Anesthesia Post-Operative Care (Oleg Zhuk)
19:37 – Obesity Management (Chungsoo Kim)
25:42 – Antithrombotic Use Post-PCI (Chang Hoon Han)
30:29 – Community Acquired Pneumonia Management. (Anna Ostropolets)
37:08 – Diabetic Retinopathy Screening (Cindy Cai)
40:58 – Pediatric Vision Screening (Gayathri Srinivasan)

Community Updates

• The Industry Workgroup is hosting a two-day in-person studyathon, though it may also have a virtual component, May 29-30 in the Gilead Office in Troy Hills, N.J. You can register here, and more information the event is available here.

• The agenda for the 2025 OHDSI Europe Symposium (July 5-7) is available on its main page. The main conference will be held July 7, while tutorials and workshops are set for July 5-6. Registration is open and available on the homepage.

• The ATLAS working group has put together a short survey to help identify who is using ATLAS in our community. If you are not using ATLAS, please also fill in this survey to help identify any barriers for adoption in your company/institution. Additionally, this survey will ask if you’d like to be interviewed for feedback on your usage of ATLAS. Data4Life is working closely with the working group to conduct interviews (~1hr) that will help inform the future direction of the application.

• The OHDSI UK Conference will be held September 26 at the Wellcome headquarters in London. More details and registration information are available here. The deadline to submit your abstract for the conference is Friday, May 9; please use this link to submit.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

• The next seminar from the Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine will be held Thursday, May 29, at 9-10 am ET. Georgie Kennedy, Senior Research Fellow at the University of New South Wales and the Ingham Institute, will provide a talk on “Learning from Real-World Cancer Data: Maturing data pipelines to support research that impacts clinical care.” Please contact Marty Alvarez at [email protected] for calendar invite or questions.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. The agenda for all three days is available on the website.

Job Openings

• Johnson & Johnson is hiring a Manager, Observational Health Data Analytics, in its Raritan, N.J., office. This candidate will work within the Global Epidemiology Organization (GEO) and contribute to the successful delivery of observational analyses for clinical characterization, population-level effect estimation, and patient-level prediction, as well as to the design of observational database analysis, including authoring protocol and analysis plans, and other responsibilities. More details and an application link are available here.

OHDSI Social Showcase

• Research from the 2024 APAC Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Feasibility of Integrating DICOM Headers into the OMOP Medical Imaging Common Data Model (MI-CDM): A Pilot Study Using Chest CT Data (Kyulee Jeon)
Tuesday — Risk of aortic aneurysm or dissection following use of fluoroquinolones: a multinational network cohort study (Jack L Janetzki)
Wednesday — Mapping Thai Medicine Terminology to RxNorm: Lessons Learned in Standard Vocabulary Integration (Krittaphas Chaisutyakorn)
Thursday — Enabling Genomic Data Harmonization in OMOP CDM (Erwin Tantoso)
Friday — Personalised prediction of chronic kidney disease progression in patients with chronic kidney disease stages 3-5: a multicentre study using the machine learning approach (Trung Toan Duong)

Slides

Studies | Community Updates

Video Presentation 

The first OHDSI Maternal Health Fellowship was designed to empower early-stage clinical investigators to leverage emerging technologies for improved maternal and neonatal care while reducing morbidity and mortality. Fellows leveraged the NIH Maternal Health OHDSI Data Partner Network, comprised of seven US-based Academic Medical Centers. Four members of the program joined the May 13 Community Call to share their research from the fellowship:

• Elizabeth Sherwin, Stanford University School of Medicine
Estimating the risk of severe maternal morbidity among pregnant people with congenital heart disease

• Elizabeth Howard, Ochsner Xavier Institute for Health Equity & Research
Risk of Neonatal Abstinence Syndrome Following Maternal Exposure to Buprenorphine vs Methadone Opioid Maintenance Therapy

• Sarah Murray, Centre for Reproductive Health, Institute for Regeneration and Repair, University of Edinburgh
Do antenatal corticosteroids (ACS) given to twins prior to planned birth (35-39 weeks’ gestation) reduce the risk of respiratory morbidity in the babies?

• Shannon Stevenson, Nell Hodgson Woodruff School of Nursing, Emory University
Healthcare Utilization Within the First 12 Weeks Postpartum

Community Updates

• Congratulations to the team of David Sarrat-González, Xavier Escribà-Montagut, Jared Houghtaling, and Juan González on the recent publication of dsOMOP: Bridging OMOP CDM and DataSHIELD for Secure Federated Analysis of Standardized Clinical Data in Bioinformatics.

• Andromeda 1.0.0 has been released. This is a major update, where we switch the backend from SQLite to DuckDB for greatly improved performance and smaller file sizes.

• The Industry Workgroup is hosting a two-day in-person studyathon, though it may also have a virtual component, May 29-30 in the Gilead Office in Troy Hills, N.J. You can register here, and more information the event is available here.

• The agenda for the 2025 OHDSI Europe Symposium (July 5-7) is available on its main page. The main conference will be held July 7, while tutorials and workshops are set for July 5-6. Registration is open and available on the homepage.

• Gabriel Maeztu is a medical doctor and mathematician revolutionizing healthcare with artificial intelligence. As the co-founder of IOMED, he has led the development of cutting-edge AI models, processing over 300 million medical records. Gabriel’s team served as a small-to-medium enterprise (SME) in the EHDEN project and engaged in building the diverse data network in Europe. He has presented posters at multiple OHDSI events, including one focused on NLP-derived OMOP results last year. In the latest edition of the collaborator spotlight, Gabriel discusses his career journey, how IOMED is impacting healthcare research, what he learned through his work with EHDEN, the critical value of advanced analytics, and plenty more.

• The ATLAS working group has put together a short survey to help identify who is using ATLAS in our community. If you are not using ATLAS, please also fill in this survey to help identify any barriers for adoption in your company/institution. Additionally, this survey will ask if you’d like to be interviewed for feedback on your usage of ATLAS. Data4Life is working closely with the working group to conduct interviews (~1hr) that will help inform the future direction of the application.

• The latest edition of the OHDSI newsletter is now available. This issue includes details on the open-source ecosystem, including all videos from DevCon 2025, community updates, 14 April publications, the latest collaborator spotlight, our May podcast, and plenty more. If you don’t receive the newsletter monthly, you can find it on the website or subscribe here.

• The OHDSI UK Conference will be held September 26 at the Wellcome headquarters in London. More details and registration information are available here. The deadline to submit your abstract for the conference is Friday, May 9; please use this link to submit.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

• The next seminar from the Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine will be held Thursday, May 29, at 9-10 am ET. Georgie Kennedy, Senior Research Fellow at the University of New South Wales and the Ingham Institute, will provide a talk on “Learning from Real-World Cancer Data: Maturing data pipelines to support research that impacts clinical care.” Please contact Marty Alvarez at [email protected] for calendar invite or questions.

• The Women of OHDSI host a monthly AMA (Ask Me Anything) within their Teams environment. Mui Van Zandt will be the May focus person; please join here and ask questions about Mui’s OHDSI journey, research, work with data, and more.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. The agenda for all three days is available on the website.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Bridging the Language Gap: Generative Models for Efficient Medical Concept Discovery (Alvaro Alvarez)

Slides

Overview | Sherwin | Howard | Stevenson | Community Updates

Video Presentations

Estimating the risk of severe maternal morbidity among pregnant people with congenital heart disease

Risk of Neonatal Abstinence Syndrome Following Maternal Exposure to Buprenorphine vs Methadone Opioid Maintenance Therapy

Does antenatal corticosteroids (ACS) given to twins prior to planned birth (35-39 weeks gestation) reduce the risk of respiratory morbidity in the babies?

Healthcare Utilization Within the First 12 Weeks Postpartum

Evidence Synthesis is an R package for combining causal effect estimates without sharing individual person data. This includes functions for performing meta-analysis and forest plots. Our look at open-source tools to aid the research journey continued with our May 6 community call, when a pair of Titan Award honorees present the Evidence Synthesis tool:

• Martijn Schuemie, Research Fellow, Global Epidemiology Organization, Johnson & Johnson
• Yong Chen, Professor of Biostatistics, University of Pennsylvania

Community Updates

• The ATLAS working group has put together a short survey to help identify who is using ATLAS in our community. If you are not using ATLAS, please also fill in this survey to help identify any barriers for adoption in your company/institution. Additionally, this survey will ask if you’d like to be interviewed for feedback on your usage of ATLAS. Data4Life is working closely with the working group to conduct interviews (~1hr) that will help inform the future direction of the application.

• The latest edition of the OHDSI newsletter is now available. This issue includes details on the open-source ecosystem, including all videos from DevCon 2025, community updates, 14 April publications, the latest collaborator spotlight, our May podcast, and plenty more. If you don’t receive the newsletter monthly, you can find it on the website or subscribe here.

• The OHDSI UK Conference will be held September 26 at the Wellcome headquarters in London. More details and registration information are available here. The deadline to submit your abstract for the conference is Friday, May 9; please use this link to submit.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The Industry Workgroup is hosting a two-day in-person studyathon, though it may also have a virtual component, May 29-30 in the Gilead Office in Troy Hills, N.J. You can register here, and more information the event is available here.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

• The next seminar from the Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine will be held Thursday, May 29, at 9-10 am ET. Georgie Kennedy, Senior Research Fellow at the University of New South Wales and the Ingham Institute, will provide a talk on “Learning from Real-World Cancer Data: Maturing data pipelines to support research that impacts clinical care.” Please contact Marty Alvarez at [email protected] for calendar invite or questions.

• The Women of OHDSI host a monthly AMA (Ask Me Anything) within their Teams environment. Mui Van Zandt will be the May focus person; please join here and ask questions about Mui’s OHDSI journey, research, work with data, and more.

Save The Dates

• The 2025 OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available. The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. You can submit your brief report(s) here.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Leveraging the Power of OMOP for an Academic Medical Research Institution (Melanie Philofsky)</strong
Tuesday — Characterizing the Temporality of OMOP CDM Concepts in a Mastectomy Phenotype (Matthew Spotnitz)
Wednesday — Comparative Safety of Second-line Antihyperglycemic Agents in Older Adults with Diabetes: Insights from the LEGEND-T2DM study (Chungsoo Kim)
Thursday — The Impact of Evolving Diagnostic Guidelines on Clinical Characterization of Endometriosis (Harry Reyes Nieva)
Friday — The missing link: Cross-species EHR data linkage offers new opportunities for improving One Health (Kathleen Mullen)

Slides

Evidence Synthesis | Community Updates

Video Presentation

The OHDSI community hosted DevCon 2025, the fourth annual gathering dedicated to advancing open-source development and collaboration, on April 25. This event brought together developers and innovators to explore the latest tools, technologies, and strategies shaping the future of open-source software in healthcare and data science. The event kicked off with an exciting series of talks showcasing cutting-edge OHDSI projects, including updates on core infrastructure, cohort construction, and novel integrations with modern data platforms.

That session followed with a dynamic developer dialogue on key topics such as DevOps, DBT, and the growing role of large language models in open-source development. This interactive session provided insights from industry leaders on emerging trends, challenges, and opportunities in the evolving open-source landscape. It concluded with a panel on building sustainable open-source ecosystems, where experts shared their experiences in fostering long-term collaboration, innovation, and community-driven development. As the open-source movement continues to grow, understanding sustainable models becomes more critical than ever. Four members of the session joined the April 29 community call to provides talks and reflections on the event.

• Introduction – Paul Nagy (Associate Professor of Radiology and Radiological Science, Johns Hopkins University)
• CustomVocabularyBuilder – Jared Houghtaling (Assistant Professor, Tufts University School of Medicine)
• Takeaways from the Developer Dialogue – Katy Sadowski (Senior Associate Director – Real World Evidence Analytics, Boehringer Ingelheim)
• PLP Demo – Egill Fridgeirsson (Scientific Researcher / Postdoc, Erasmus MC)

Community Updates

• Congratulations to the team of Klaus Donsa, Patrick Mangesius, Aaron Lauschensky, Martin Baumgartner, Nikola Tanjga, Stefan Beyer, Günter Schreier, and Karl Kreiner on the recent publication of FOX BOXes as Fundamental Enablers for EHR-Standardised Data Sharing – Building the Austrian Health Data Donation Space in Volume 324 of Studies in Health Technology and Informatics: dHealth 2025.

• Congratulations to the team of Jakob Thiel, Martin Sedlmayr, and Elisa Henke on the recent publication of Standardizing Heat-Related Diagnoses for Predictive Modeling in Healthcare in Volume 324 of Studies in Health Technology and Informatics: dHealth 2025.

• Congratulations to the team of Jin Ge, Albert Lee, Oksana Gologorskaya, Aryana Far, Asal Bastani, Chiung-Yu Huang, Mark J Pletcher, and Jennifer C Lai on the recent publication of Characterizing practice variations in the care of hospitalized patients with cirrhosis across the University of California Health in Liver Transplantation.

• Our fourth annual DevCon was held April 25. This event brought together developers and innovators to explore the latest tools, technologies, and strategies shaping the future of open-source software in healthcare and data science. All three sessions, as well as the introductory talk by Paul Nagy, are all available on the DevCon event page.

• The ATLAS working group has put together a short survey to help identify who is using ATLAS in our community. If you are not using ATLAS, please also fill in this survey to help identify any barriers for adoption in your company/institution. Additionally, this survey will ask if you’d like to be interviewed for feedback on your usage of ATLAS. Data4Life is working closely with the working group to conduct interviews (~1hr) that will help inform the future direction of the application.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. More information on the symposium, including abstract submission and registration links, will be available soon.

• The Industry Workgroup is hosting a two-day in-person studyathon, though it may also have a virtual component, May 29-30 in the Gilead Office in Troy Hills, N.J. You can register here, and more information the event is available here.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Enhancing Local Vocabulary into OMOP Vocabulary based on the Semi-Automated Framework: Korean EDI Case Study (Yilu Park)
Tuesday — Scaling the OHDSI Common Data Model into Large Enterprises – Insights from the DoD Military Health System (Jesus Caban)
Wednesday — Race and ethnicity biases introduced by filtering electronic health records for patients with “complete data” (Yasaman Fatapour)
Thursday — Implementation and Evaluation of the Prevalence of Low-Value Care Procedures Using the OHDSI Network: A Case Study of Early Peripheral Vascular Interventions for Claudication (Chen Dun)
Friday — Accelerating FHIR to OMOP conversions on IQVIA Health Data Transformation Platform (Jonathan Cook)

Slides

DevCon Review | Community Updates

Video Presentation

Two core pillars of OHDSI research—estimation and prediction—took center stage during our April 22 community call. As part of our Analysis April theme, this session highlighted the progress we’re making in real-world evidence generation and showcases the tools and methods driving this work forward.

We were excited to welcome leading voices from both research areas to share updates on current practices and discuss cutting-edge tools developed within the OHDSI community:

• George Hripcsak, Vivian Beaumont Allen Professor of Biomedical Informatics, Columbia University
• Marc Suchard, Professor of Biostatistics, Biomathematics, & Human Genetics, UCLA
• Ross Williams, Assistant Professor, Erasmus University Medical Centre
• Egill Fridgeirsson, Scientific Researcher/Postdoc, Erasmus University Medical Centre
• Jenna Reps, Associate Director, Observational Health Data Analytics, Johnson & Johnson

Community Updates

• Congratulations to the team of Daniel Kapitan, Femke Heddema, André Dekker, Melle Sieswerda, Bart-Jan Verhoeff, and Matt Berg on the recent publication of Data Interoperability in Context: The Importance of Open-Source Implementations When Choosing Open Standards in the Journal of Medical Internet Research.

• Congratulations to the team of Young Hwa Lee, Young June Choe, Yoon Sun Yoon, Ji Young Park, Yun-Kyung Kim, Hyung Joon Joo, Sujin Choi, Hyun Jung Kim and Lorenzo Bertizzolo on the recent publication of Predicting ICU Admission Risk in Children with Respiratory Syncytial Virus in Infectious Diseases and Therapy.

• Congratulations to the team of Jenna Reps, Peter Rijnbeek and Patrick Ryan on the recent publication of Can we develop real-world prognostic models using observational healthcare data? Large-scale experiment to investigate model sensitivity to database and phenotypes in Diagnostic and Prognostic Research.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. More information on the symposium, including abstract submission and registration links, will be available soon.

• Our fourth annual DevCon will be held Friday, April 25, from 9 am – 2 pm ET. This virtual session continues to connect our global open-source community so that we can learn about recent updates and discuss ways to continue enhancing the future of OHDSI open-source software.

• The Columbia Summer School on OHDSI, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — PHederation – the federated network of Pulmonary Hypertension registries (Eva-Maria Didden)
Tuesday — Gap Analysis of Static Automated Perimetry Concept Representation in OMOP CDM (Shahin Hallaj)
Wednesday — Enhancing Cardiovascular Adverse Event Detection in ICI-Treated Cancer Patients: Lessons Learned from Natural Language Processing Integration with OMOP CDM (Clara L. Oeste)
Thursday — Electrocardiogram-Based Identification of Acute Heart Failure in Chronic Heart Failure: A MIMIC-IV and OMOP-CDM Standardized Approach (Seung Wook Lee)
Friday — OHDSI AI: Generative AI-powered Knowledge Translation of OHDSI Research Literature and Singapore’s Cardiovascular Research (Maisie Ng)

Slides

Estimation | Prediction | Community Updates

Videos

Recent Advances in Estimation (Hripcsak, Suchard)

Recent Advances in Prediction (Williams, Fridgeirsson)

The April 15 community call focused on the HADES TreatmentPatterns package. The tool both develops and analyzes treatment patterns, and it can formally define and implement the process of constructing treatment pathways. We were happy to welcome Maarten van Kessel, a software developer at Erasmus MC, to lead this session.

Learn more about this package here.

Community Updates

• Congratulations to the team of Shahin Hallaj, William Halfpenny, Niloofar Radgoudarzi, Michael V Boland, Swarup S Swaminathan, Sophia Y Wang, Benjamin Y Xu, Dilru C Amarasekera, Brian Stagg, Aiyin Chen, Michelle Hribar, Kaveri A Thakoor, Kerry E Goetz, Jonathan S Myers, Aaron Y Lee, Mark A Christopher, Linda M Zangwill, Robert N Weinreb, and Sally L Baxter on the recent publication of Gap Analysis of Standard Automated Perimetry Concept Representation in Medical Terminologies in the Journal of Glaucoma.

• Congratulations to the team of Elisa Henke, Stephan Lorenz, Michele Zoch, Martin Sedlmayr, and Yuan Peng on the recent publication of Mapping National Vocabularies to International Standards Using OHDSI Standardized Vocabularies in Volume 323 of Studies in Health Technology and Informatics.

• Congratulations to the team of Yuan Peng, Elisa Henke, and Martin Sedlmayr on the recent publication of From Heterogeneity to Uniformity: A Metadata-Driven ETL Process for Transforming FHIR Data into OMOP CDM in Volume 323 of Studies in Health Technology and Informatics.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. More information on the symposium, including abstract submission and registration links, will be available soon.

• Our fourth annual DevCon will be held Friday, April 25, from 9 am – 2 pm ET. This virtual session continues to connect our global open-source community so that we can learn about recent updates and discuss ways to continue enhancing the future of OHDSI open-source software.

• The Columbia OHDSI Summer School, which will be held July 14-18 at Columbia University, provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network. Registration is now open and will be capped at 30 people.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Classification of RxNorm and RxNorm Extension Vaccine-related Terms in the Vaccine Ontology (Jie Zheng, Xingxian Li)
Tuesday — Common Data Elements for Maternal Health Research: An OMOP-CDM Concept Mapping Study (Andreea Creanga)
Wednesday — Design of Feedback Reports for Evaluating Data Fitness for Use in the Bridge2AI For Clinical Care Research Consortium (Jared Houghtaling)
Thursday — OHDSI in Africa and Partnerships with European Institutions (Cynthia Sung)
Friday — Comorbidities among patients with Severe Maternal Morbidity: A comparison of conditions identified through active hospital-based surveillance versus OMOP CDM (Carrie Wolfson)

Slides

Treatment Patterns | Community Updates

Videos

Introduction to the HADES TreatmentPatterns Package (van Kessel)

During the April 8 Community Call, HADES lead and Strategus maintainer Anthony Sena provided a quick overview of both the Strategus package and HADES modules. He walked through the OHDSI Strategus study template and show how it supports designing and running network studies—including the sample study that sites are being asked to run to prepare for upcoming OHDSI research. There was also a section dedicated to helping you design your own network study with Strategus and HADES.

Community Updates

• Congratulations to the team of Patricia Pedregal-Pascual, Carlos Guarner-Argente, Eng Hooi Tan, Asieh Golozar, Talita Duarte-Salles, Andreas Weinberger Rosen, Antonella Delmestri, Wai Yi Man, Edward Burn, Daniel Prieto-Alhambra, and Danielle Newby on the recent publication of Incidence and survival of colorectal cancer in the United Kingdom from 2000-2021: a population-based cohort study in The American Journal of Gastroenterology.

• Congratulations to the team of Minwoo Lee, Kyung Joo Lee, Jinseob Kim, Dong Yun Lee, Rae Woong Park, Sang Youl Rhee, Jae Myung Cha, Hyeon-Jong Yang, Jae-Won Jang, Seunguk Jung, Jeeun Lee, Sang-Hwa Lee, Chulho Kim, Jong-Seok Bae, Yeo Jin Kim, Ju-Hun Lee, Hyoeun Bae, and Yerim Kim on the recent publication of Low-density lipoprotein cholesterol levels and risk of incident dementia: a distributed network analysis using common data models in the Journal of Neurology, Neurosurgery & Psychiatry.

• Congratulations to Ferran Sanz on the recent publication of Integrative Data Science in Drug Safety Research: Experiences, Challenges, and Perspectives in the Annual Review of Biomedical Data Science.

• Congratulations to the team of Samuel Cox, Erum Masood, Vasiliki Panagi, Calum Macdonald, Gordon Milligan, Scott Horban, Roberto Santos, Chris Hall, Daniel Lea, Simon Tarr, Shahzad Mumtaz, Emeka Akashili, Andy Rae, Esmond Urwin, Christian Cole, Aziz Sheikh, Emily Jefferson, Philip Roy Quinlan on the recent publication of Conversion of Sensitive Data to the Observational Medical Outcomes Partnership Common Data Model: Protocol for the Development and Use of Carrot in JMIR Research Protocols.

• Congratulations to the team of E. Claire Newbern, Azza Shoaibi, Kevin Haynes, Clair Blacketer, Corinne Willame, Frank DeFalco, Gowtham A. Rao, Kourtney Davis, Luis Anaya Velarde, Nicolas Praet, Rupa Makadia, Yimei Xu, Patrick Ryan, and Martijn Schuemie on the recent publication of A rapid cycle analytics framework for vaccine safety surveillance within a real-world data network: Experience with enhanced surveillance of the Janssen COVID-19 vaccine in Vaccine.

• Congratulations to the team of Liwei Wang, Andrew Wen, Sunyang Fu, Xiaoyang Ruan, Ming Huang, Rui Li, Qiuhao Lu, Heather Lyu, Andrew E. Williams & Hongfang Liu on the publication of A scoping review of OMOP CDM adoption for cancer research using real world data in NPJ Digital Medicine.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. More information on the symposium, including abstract submission and registration links, will be available soon.

• Our fourth annual DevCon will be held Friday, April 25, from 9 am – 2 pm ET. This virtual session continues to connect our global open-source community so that we can learn about recent updates and discuss ways to continue enhancing the future of OHDSI open-source software.

• The April edition of the OHDSI newsletter is now available. It includes community updates, details on the latest vocabularies refresh and community work around data, the monthly OHDSI podcast, recent publications and presentations, and plenty more.

• Daniel Morales is a General Practitioner and Epidemiologist affiliated with the Division of Population Health and Genomics at the University of Dundee. His research primarily focuses on the safety and effectiveness of medicines, leveraging his clinical and regulatory experience to inform epidemiological studies. Beyond his academic role, Daniel contributes to regulatory science as a Senior Clinical Epidemiologist within the Data Analytics Taskforce at the European Medicines Agency (EMA). ​In the latest edition of the Collaborator Spotlight, Daniel discusses his career journey, the progression of both EHDEN and DARWIN EU, how OHDSI can inform regulatory decision-making, and plenty more.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

• The R/Medicine virtual conference provides a forum for sharing R based tools and approaches used to analyze and gain insights from health data. The call for proposals (talks, demos and workshops) is open through Friday, April 11.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Streamlining Research Data Standardization: AI-READI Survey Instrument Data Elements and MoCA Measurement Data Elements are curated and mapped utilizing a Standardized Value Set Mapping Table for transformation into the OMOP Common Data Model (Stephanie S. Hong)
Tuesday — Constructing an Enriched Clinical Knowledge Graph: Transforming EHR Data to OMOP and Modeling in Neo4j Graph Database (Thejas Bharadwaj)
Wednesday — Evaluation of PLIP model performance using pathology images and notes based on OMOP-CDM (Harrin Kim)
Thursday — Trends in Hospitalization Among Patients with Cardiovascular, Immunological, and neurological Illnesses: Findings from HowOften (Azza AS Shoaibi)
Friday — CohortContrast: Universal Patient Trajectory Extraction from OMOP CDM (Markus Haug)

Slides

Strategus | Community Updates

Videos

Strategus and HADES (Sena)

Our community has published more than 800 studies related to OHDSI or OMOP, and five lead authors joined our April 1 community call to present their recently published research.

Cindy Cai • Johns Hopkins University
Semaglutide and Nonarteritic Anterior Ischemic Optic Neuropathy • JAMA Ophthalmology

Chen Yanover • KI Research Institute
Characteristics and Outcomes of Over a Million Patients with Inflammatory Bowel Disease in Seven Countries: Multinational Cohort Study and Open Data Resource • Digestive Diseases and Sciences

Mitchell Conover • Janssen Research and Development
Objective study validity diagnostics: a framework requiring pre-specified, empirical verification to increase trust in the reliability of real-world evidence • JAMIA

Jiayi Tong • Johns Hopkins University
DisC2o-HD: Distributed causal inference with covariates shift for analyzing real-world high-dimensional data • Journal of Machine Learning Research

Naimin Jing, Yiwen Lu • University of Pennsylvania
Evaluating the Bias, type I error and statistical power of the prior Knowledge-Guided integrated likelihood estimation (PIE) for bias reduction in EHR based association studies • Journal of Biomedical Informatics

Community Updates

• Congratulations to the team of Eizen Kimura, Yukinobu Kawakami, Shingo Inoue, and Ai Okajima on the recent publication of A dataset for mapping the Japanese drugs to RxNorm standard concepts in Data in Brief.

• Congratulations to the team of Florian Katsch, Rada Hussein, Tanja Stamm, and Georg Duftschmid on the recent publication of Converting Health Level 7 Clinical Document Architecture (CDA) documents to Observational Medical Outcomes Partnership Common Data Model (OMOP CDM) by leveraging CDA Template definitions in JAMIA Open.

• Congratulations to the team of Meredith C B Adams, Matthew L Perkins, Cody Hudson, Vithal Madhira, Oguz Akbilgic, Da Ma, Robert W Hurley, and Umit Topaloglu on the recent publication of Breaking Digital Health Barriers: Development and Validation of an LLM-Based Tool for Automated OMOP Mapping in the Journal of Medical Internet Research.

• Congratulations to the team of Michelle Hribar, Cindy X Cai, Kerry E. Goetz, and George Hripcsak on the recent publication of The OHDSI Network in Ophthalmology-The Promise of Observational Health Data in JAMA Ophthalmology.

• The submission deadline for the 2025 Collaborator Showcase is July 1. The showcase will be accepting both posters and software demos, as well as interest in hosting lightning talks. More information on the symposium, including abstract submission and registration links, will be available soon.

• Our fourth annual DevCon will be held Friday, April 25, from 9 am – 2 pm ET. This virtual session continues to connect our global open-source community so that we can learn about recent updates and discuss ways to continue enhancing the future of OHDSI open-source software.

• The April edition of the OHDSI newsletter is now available. It includes community updates, details on the latest vocabularies refresh and community work around data, the monthly OHDSI podcast, recent publications and presentations, and plenty more.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

• The R/Medicine virtual conference provides a forum for sharing R based tools and approaches used to analyze and gain insights from health data. The call for proposals (talks, demos and workshops) is open through Friday, April 11.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Enhancing Infectious Disease Data Integration and management through OMOP-CDM in South Korea (Min Ho An)
Tuesday — Towards automated phenotype definition extraction using large language models (Ramya Tekumalla)
Wednesday — Can we combine propensity score modeling and patient level prediction to make counterfactual predictions? (Jenna Reps)
Thursday — Real-world Effectiveness of Medications for Opioid Use Disorder (RWE-MOUD) (Ruochong Fan)
Friday — Health Trends Across Communities in Minnesota: a Statewide Dashboard Leveraging the OMOP CDM to Monitor the Prevalence of Health Conditions (Samuel Patnoe)

Slides

Cai | Yanover | Conover | Jing/Lu | Community Updates

Videos

Semaglutide and Nonarteritic Anterior Ischemic Optic Neuropathy (Cai)

Characteristics and Outcomes of Over a Million Patients with Inflammatory Bowel Disease in Seven Countries: Multinational Cohort Study and Open Data Resource (Yanover)

Objective study validity diagnostics: a framework requiring pre-specified, empirical verification to increase trust in the reliability of real-world evidence (Conover)

DisC2o-HD: Distributed causal inference with covariates shift for analyzing real-world high-dimensional data (Tong)

Evaluating the Bias, type I error and statistical power of the prior Knowledge-Guided integrated likelihood estimation (PIE) for bias reduction in EHR based association studies (Jing/Lu)

Asieh Golozar, lead of the OHDSI Oncology workgroup, led the March 25 community call session focused on “Ensuring Data Fitness for Oncology Research.” This explored why high-quality data is essential for reliable cancer research and covered key aspects of data accuracy, completeness, and consistency to help researchers identify and address common issues. Asieh shared strategies to improve data reliability, making studies more reproducible and impactful. 

Community Updates

• Congratulations to the team of Britt A.E. Dhaenens, Maxim Moinat, Eva-Maria Didden, Nadir Ammour, Rianne Oostenbrink, and Peter Rijnbeek on the recent publication of Identifying patients with neurofibromatosis type 1 related optic pathway glioma using the OMOP CDM in the European Journal of Medical Genetics.

• Congratulations to the team of Boris Delange, Benjamin Popoff, Thibault Séité. Antoine Lamer, and Adrien Parrot on the recent publication of LinkR: An open source, low-code and collaborative data science platform for healthcare data analysis and visualization in the International Journal of Medical Informatics.

• The collaborator showcase deadline for the 2025 OHDSI Europe Symposium is less than one week away. All submissions must be completed by March 31, 2025. More information on the Europe Symposium, which will be held July 5-7 in Belgium, is available here.

• Jodi Segal, Professor of Medicine at Johns Hopkins University, expressed her interest — and sought collaboration — in forming a workgroup around the overuse of healthcare. The workgroup mission would be to efficiently generate evidence about the effectiveness of interventions that reduce low value care delivery. Both the slides and the video are available; you can express interest at this forum post.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

• The R/Medicine virtual conference provides a forum for sharing R based tools and approaches used to analyze and gain insights from health data. The call for proposals (talks, demos and workshops) is open through Friday, April 11.

• Hongfang Liu will lead a talk on ‘A Translational Science Framework in Advancing Healthcare AI’ on March 27 at 11 am ET as part of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine seminar series. Please contact Marty Alvarez at [email protected] for calendar invite or questions.

• Leaders from over 30+ workgroups presented opportunities for all community members to find a home for their talents and passions. Newcomers and veterans can both make meaningful contributions to our community by collaborating in workgroups. Throughout February, workgroup representatives shared the mission, recent achievements and 2025 goals. You can find those presentations and see if there is a home for you on our workgroups homepage.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Registration is open and abstracts are due by March 31.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — A Collaborative Analytic Enclave for the Metabolic Dysregulation and Obesity Cancer Risk Program (MeDOC) Consortium: Extensions of the OMOP Common Data Model for Translational Research (Madhan Subramanian)
Tuesday — A Systematic and Sustainable Solution for Assessing Network Data Quality (Kimberley Dickinson)
Wednesday — An Augmented Method for Empirical p-value Calibration in Observational Studies (Huiyuan Wang)
Thursday — A Oneshot and Lossless Federated Generalized Linear Mixed Effect Model (Jiayi Tong)
Friday — Polites: A Tool for the Automation of OHDSI Implementations (John Gresh)

Slides

Ensuring Data Fitness for Oncology Research | Community Updates

Videos

Ensuring Data Fitness for Oncology Research

Clair Blacketer, lead of the OMOP Common Data Model workgroup, led this March 18 community call focused on Data Fitness for Use. She provided an update on the rapidly growing Evidence Network, and then she went through the Data Diagnostics tool to show how to ensure real-world data is able to be used for network studies.

Community Updates

• The Dutch and Oxford ISPE Student Chapters are hosting a webinar on various career paths in pharmacoepidemiology this Wednesday, March 19th, 3-4 pm CET (2-3 pm GMT). This webinar will include four speakers who will discuss their careers and provide tips on getting started: Daniala Weir, assistant professor at Utrecht University, Romin Pajouheshnia, Research Epidemiologist at RTI-Health Solutions, Anna Menacher, Medical innovation scientist at Novo Nordisk, and Andrei Barbulescu, Pharmacoepidemiologist and data analyst at EMA. This webinar is open to all students (and former students) interested in European careers in pharmacoepidemiology. Use this link to sign up! https://lnkd.in/eu_Jvqaf.

• Congratulations to Patrick Ryan, who was honored as the Best Male Ally in the 2025 Women of Pharma Role Model Awards. He was nominated by Sarah Seager.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

• The R/Medicine virtual conference provides a forum for sharing R based tools and approaches used to analyze and gain insights from health data. The call for proposals (talks, demos and workshops) is open through Friday, April 11.

• Asieh Golozar announced that the iCAN mNSCLC Studyathon 2025 will be held March 25-28 I Helsinki, Finlad, and the focus is “Exploring the Real-World Treatment Landscape of mNSCLC.” The event will focus on characterizing real-world treatment patterns of metastatic NSCLC, with a focus on the adoption and impact of immune checkpoint inhibitors (ICIs) across different regions. Reach out to Asieh Golozar ([email protected]) for more information or if you wish to contribute.

• Hongfang Liu will lead a talk on ‘A Translational Science Framework in Advancing Healthcare AI’ on March 27 at 11 am ET as part of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine seminar series. Please contact Marty Alvarez at [email protected] for calendar invite or questions.

• Leaders from over 30+ workgroups presented opportunities for all community members to find a home for their talents and passions. Newcomers and veterans can both make meaningful contributions to our community by collaborating in workgroups. Throughout February, workgroup representatives shared the mission, recent achievements and 2025 goals. You can find those presentations and see if there is a home for you on our workgroups homepage.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Registration is open and abstracts are due by March 31.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Towards Reproducible Imaging Research: Implementation of DICOM to OMOP CDM (Woo Yeon Park)
Tuesday — Using Vaccine Ontology to Analyze and Integrate Vaccine Terms in N3C Dataset (Yuanyi Pan)
Wednesday — Building OHDSI with Privacy Computing in Shanghai Medical College, Fudan University (Changran Wang)
Thursday — Collaborative Population-adjusted Indirect Comparison with Multiple Single-arm Data Sources (Yuru Zhu)
Friday — Visual Acuity: A Case Study for a Complex Clinical Concept (Michelle Hribar)

Slides

Evidence Network & Data Diagnostics | Community Updates

Videos

Evidence Network & Data Diagnostics

The Book of OHDSI, published in 2019, has been one of the most widely accessed educational tools within the community. It was recently announced that Christian Reich and Sarah Seager are leading an initiative to publish a second edition of the Book of OHDSI, featuring updated content and new chapters. The March 11 community call featured a discussion on what might be included in the second edition, and how it will need to come together prior to the 2025 Global Symposium.

If you are interested in joining this collaborative community effort, please sign up for the Education WG. Conversations and activities around the Book of OHDSI will take place within that workgroup.

Community Updates

• Congratulations to the team of Inessa Cohen, Zihan Diao, Pawan Goyal, Aarti Gupta, Kathryn Hawk, Bill Malcom, Caitlin Malicki, Dhruv Sharma, Brian Sweeney, Scott Weiner, Arjun Venkatesh, and Andrew Taylor on the recent publication of Mapping Emergency Medicine Data to the Observational Medical Outcomes Partnership Common Data Model: A Gap Analysis of the American College of Emergency Physicians Clinical Emergency Data Registry in the Journal of the American College of Emergency Physicians Open.

• Congratulations to the team of Yi Chai, Ivan C. H. Lam, Kenneth K. C. Man, Joseph F. Hayes, Eric Y. F. Wan, Xue Li, Celine S. L. Chui, Wallis C. Y. Lau, Xiaoyu Lin, Can Yin, Min Fan, Esther W. Chan, Ian C. K. Wong & Hao Luo on the recent publication of Psychiatric and neuropsychiatric sequelae of COVID-19 within 2 years: a multinational cohort study in BMC Medicine.

• The Industry WG is hosting an industry specific studaython (potential dates are May or June) and is looking for input on who might be interested and what dates work best. If you are a member of the Industry WG or are considering joining the team, please fill out this survey by the end of this week.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

• The R/Medicine virtual conference provides a forum for sharing R based tools and approaches used to analyze and gain insights from health data. The call for proposals (talks, demos and workshops) is open through Friday, April 11.

• Asieh Golozar announced that the iCAN mNSCLC Studyathon 2025 will be held March 25-28 I Helsinki, Finlad, and the focus is “Exploring the Real-World Treatment Landscape of mNSCLC.” The event will focus on characterizing real-world treatment patterns of metastatic NSCLC, with a focus on the adoption and impact of immune checkpoint inhibitors (ICIs) across different regions. Reach out to Asieh Golozar ([email protected]) for more information or if you wish to contribute.

• Hongfang Liu will lead a talk on ‘A Translational Science Framework in Advancing Healthcare AI’ on March 27 at 11 am ET as part of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine seminar series. Please contact Marty Alvarez at [email protected] for calendar invite or questions.

• Leaders from over 30+ workgroups presented opportunities for all community members to find a home for their talents and passions. Newcomers and veterans can both make meaningful contributions to our community by collaborating in workgroups. Throughout February, workgroup representatives shared the mission, recent achievements and 2025 goals. You can find those presentations and see if there is a home for you on our workgroups homepage.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Registration is open and abstracts are due by March 31. 

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Adopting the OMOP Oncology CDM at the Helsinki University Hospital (Valtteri Nieminen)
Tuesday — ETIng from your OMOP CDM to your OMOP CDM?  An efficient solution to vocabulary migration (Clair Blacketer)
Wednesday — Comparative Analysis of OMOP CDM Database Profiles Across Institutions and Future Research Implications (Haeun Lee)
Thursday — Atlas2AoU: Enabling Comparison of OHDSI Phenotype Library Phenomic Profiles in All of Us and the UK Biobank (Abigail Newbury)
Friday — Measuring Severe Maternal Morbidity: A Pilot OHDSI Electronic Health Record Network Study (Stephanie Leonard)

Slides

Book of OHDSI | Community Updates

Videos

Book of OHDSI 2.0

The Winter 2025 vocabulary refresh was released last week and includes several domain changes, newly added concepts, concept changes and more. Please join our March 4 community call (11 am ET) for a full update on this recent refresh, led by

• Anna Ostropolets, Associate Director, Johnson & Johnson Innovative Medicine; Adjunct Assistant Professor, Columbia University
• Oleg Zhuk, Manager, Data Analytics Consulting, EPAM Systems
• Vlad Korsik, Vocabulary Technical Lead, EPAM Systems
• Masha Khitrun, Senior Scientific Curation Specialist, EPAM Systems

This session also included a Phenotype Phebruary review from two members of our leadership team: Anna Ostropolets and Azza Shoaibi.

Community Updates

• Congratulations to the team of Inessa Cohen, Zihan Diao, Pawan Goyal, Aarti Gupta, Kathryn Hawk, Bill Malcom, Caitlin Malicki, Dhruv Sharma, Brian Sweeney, Scott Weiner, Arjun Venkatesh, and Andrew Taylor on the recent publication of Mapping Emergency Medicine Data to the Observational Medical Outcomes Partnership Common Data Model: A Gap Analysis of the American College of Emergency Physicians Clinical Emergency Data Registry in the Journal of the American College of Emergency Physicians Open.

• Congratulations to the team of Seonji Kim, Subin Kim, Chungsoo Kim, Junhyuk Chang, Rae Woong Park, Kyung Won Kim, and Seng Chan You on the publication of Utility of Treatment Pattern Analysis Using a Common Data Model: A Scoping Review in Healthcare Informatics Research.

• The latest edition of The Journey Newsletter is now available, and it includes reviews of Phenotype Phebruary and workgroup updates, recent community updates, publications and presentations from February, and plenty more.

• Christian Reich and Sarah Seager are leading an effort to publish a second edition of the Book of OHDSI, which will include updates to previous text and new paragraphs/chapters. This work is taking place within the Education workgroup; if you would like to join this effort, please sign up here.

• Asieh Golozar announced that the iCAN mNSCLC Studyathon 2025 will be held March 25-28 I Helsinki, Finlad, and the focus is “Exploring the Real-World Treatment Landscape of mNSCLC.” The event will focus on characterizing real-world treatment patterns of metastatic NSCLC, with a focus on the adoption and impact of immune checkpoint inhibitors (ICIs) across different regions. Reach out to Asieh Golozar ([email protected]) for more information or if you wish to contribute.

• Please consider joining the Scientific Review Committee for the 2025 OHDSI Global Symposium, which will be held Oct. 7-9. Please fill out this form by March 4 if you are interested or want to learn more.

• Hongfang Liu will lead a talk on ‘A Translational Science Framework in Advancing Healthcare AI’ on March 27 at 11 am ET as part of The Center for Advanced Healthcare Research Informatics (CAHRI) at Tufts Medicine seminar series. Please contact Marty Alvarez at [email protected] for calendar invite or questions.

• Leaders from over 30+ workgroups presented opportunities for all community members to find a home for their talents and passions. Newcomers and veterans can both make meaningful contributions to our community by collaborating in workgroups. Throughout February, workgroup representatives shared the mission, recent achievements and 2025 goals. You can find those presentations and see if there is a home for you on our workgroups homepage.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Inclusion of intraocular pressure data into the University of California Health Data Warehouse (William Halfpenny and Shahin Hallaj)
Tuesday — Hierarchical Algorithms for Querying Physiologically Distinct Groups in Adult Congenital Heart Disease Using OMOP CDM (Seohu Lee)
Wednesday — Vasculitis without phlebitis phenotype development using real-world data: development and evaluation study (Jill Hardin)
Thursday — Using OHDSI Standards and Tools to Train the Next Generation of Researchers (Jonah Bradenday)
Friday — Comparing probabilistic and rule-based phenotype algorithms for hypotension and angioedema to the experience observed in randomized clinical trials (Joel Swerdel)

Job Postings

• Monica Gerber shared a job opening for an Analytics Engineer at Fred Hutchinson Cancer Research Center in Seattle, Washington. As an Analytics Engineer, you will collaborate with our data science team to design, build, and maintain multi-modal data models that integrate various data sources. Your work will support AI-driven research and translational data science use cases, helping to advance our scientific and technological goals. More information and an application link are available here.

Slides

Vocabulary Refresh | Phenotype Phebruary | Community Updates

Videos

Winter 2025 Vocabulary Refresh

Phenotype Phebruary Review 

Week 4 of Phenotype Phebruary is dedicated to iterating on cohort definitions & evaluating with additional OHDSI tools for the phenotypes that will be used in the guideline-driven evidence opportunities presented last month. Oleg Zhuk provided a tutorial on Cohort Diagnostics, while Anna Ostropolets and Azza Shoaibi discussed the progress of Phenotype Phebruary. 

OHDSI workgroups present opportunities for all community members to find a home for their talents and passions, and make meaningful contributions. Each year, workgroups discuss their mission, objectives and key results (OKRs) during February community calls. This video includes presentations by the Africa Chapter, Rare Diseases, Surgery & Perioperative Medicine, GIS, Natural Language Processing, Medical Devices, Oncology, Themis and CDM Survey workgroups.

Videos for both parts of the Feb. 25 community call are available below.

Community Updates

• Congratulations to the team of Jiyong An, Jiyun Kim, Leonard Sunwoo, Hyunyoung Baek, Sooyoung Yoo & Seunggeun Lee on the recent publication of De-identification of clinical notes with pseudo-labeling using regular expression rules and pre-trained BERT in BMC Medical Informatics and Decision Making.

• Congratulations to the team of Eun-Gee Park, Min Jung Kim, Jinseo Kim, Kichul Shin, and Borim Ryu on the publication of Utility of Treatment Pattern Analysis Using a Common Data Model: A Scoping Review in Healthcare Informatics Research.

• Congratulations to the team of Chen Yanover, Ramit Magen-Rimon, Erica A. Voss, Joel Swerdel, Anna Sheahan, Nathan Hall, Jimyung Park, Rae Woong Park, Kwang Jae Lee, Sung Jae Shin, Seung In Seo, Kyung-Joo Lee, Thomas Falconer, Leonard Haas, Paul Nagy, Mary Grace Bowring, Michael Cook, Steven Miller, Tal El-Hay, Maytal Bivas-Benita, Pinchas Akiva, Yehuda Chowers & Roni Weisshof on the recent publication of Characteristics and Outcomes of Over a Million Patients with Inflammatory Bowel Disease in Seven Countries: Multinational Cohort Study and Open Data Resource in Digestive Diseases and Sciences.

• Congratulations to the team of Cindy X. Cai Michelle Hribar, Sally Baxter, Kerry Goetz, Swarup S. Swaminathan, Alexis Flowers, Eric N. Brown, Brian Toy, Benjamin Xu, John Chen, Aiyin Chen, Sophia Wang, Cecilia Lee, Theodore Leng, Joshua R. Ehrlich, Andrew Barkmeier, Karen R. Armbrust, Michael V. Boland, David Dorr, Danielle Boyce, Thamir Alshammari, Joel Swerdel, Marc A. Suchard, Martijn Schuemie, Fan Bu, Anthony G. Sena, George Hripcsak, Akihiko Nishimura, Paul Nagy, Thomas Falconer, Scott L. DuVall, Michael Matheny, Benjamin Viernes, William O’Brien, Linying Zhang, Benjamin Martin, Erik Westlund, Nestoras Mathioudakis, Ruochong Fan, Adam Wilcox, Albert Lai, Jacqueline C. Stocking, Sahar Takkouche, Lok Hin Lee, Yangyiran Xie, Izabelle Humes, David B. McCoy, Mohammad Adibuzzaman, Raymond G. Areaux Jr, William Rojas-Carabali, James Brash, David A. Lee, Nicole G. Weiskopf, Louise Mawn, Rupesh Agrawal, Hannah Morgan-Cooper, Priya Desai, and Patrick B. Ryan on the recent publication of Semaglutide and Nonarteritic Anterior Ischemic Optic Neuropathy in JAMA Ophthalmology.

• Congratulations to the team of ChulHyoung Park, So Hee Lee, Da Yun Lee, Seoyoon Choi, Seng Chan You, Ja Young Jeon, Sang Jun Park, and Rae Woong Park on the publication of Analysis of Retinal Thickness in Patients With Chronic Diseases Using Standardized Optical Coherence Tomography Data: Database Study Based on the Radiology Common Data Model in JMIR Medical Informatics.

• Asieh Golozar announced that the iCAN mNSCLC Studyathon 2025 will be held March 25-28 I Helsinki, Finlad, and the focus is “Exploring the Real-World Treatment Landscape of mNSCLC​.” The event will focus on characterizing real-world treatment patterns of metastatic NSCLC, with a focus on the adoption and impact of immune checkpoint inhibitors (ICIs) across different regions. Reach out to Asieh Golozar ([email protected]) for more information or if you wish to contribute.

• Please consider joining the Scientific Review Committee for the 2025 OHDSI Global Symposium, which will be held Oct. 7-9. Please fill out this form by March 3 if you are interested or want to learn more.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Standardizing Rare Disease Patient Registry data to the OMOP-CDM (Parag Shiralkar)
Tuesday — Who Wants To Be A 2Billionaire? – A methodology for migrating from STCM to C/CR (Roger Carlson)
Wednesday — Leveraging the active comparator new user design to identify potential unknown benefits of canagliflozin (Justin Bohn)
Thursday — Does the SARS-CoV-2 Infection Increase the Onset of New Mental Health Disorder? Findings from Difference-in-Differences Analyses Using an EHR-Based Cohort from the RECOVER Program (Yiwen Lu)
Friday — dbt for OMOP Phase I: dbt-synthea (Katy Sadowski)

Job Postings

• Monica Gerber shared a job opening for an Analytics Engineer at Fred Hutchinson Cancer Research Center in Seattle, Washington. As an Analytics Engineer, you will collaborate with our data science team to design, build, and maintain multi-modal data models that integrate various data sources. Your work will support AI-driven research and translational data science use cases, helping to advance our scientific and technological goals. More information and an application link are available here.

Slides

Workgroup OKRs | Community Updates

Videos

Phenotype Phebruary, Week 4

Workgroup OKRs, Week 4

Week 3 of Phenotype Phebruary is dedicated to evaluating cohorts using CohortDiagnostics for the phenotypes that will be used in the guideline-driven evidence opportunities presented last month, and our leads will discuss next steps in this process.

OHDSI workgroups present opportunities for all community members to find a home for their talents and passions, and make meaningful contributions. Each year, workgroups discuss their mission, objectives and key results (OKRs) during February community calls. This video includes presentations by the OHDSI APAC, Generative AI and Foundational Models in Healthcare (GenAI), HADES, Eye Care and Vision Research, Latin America, Transplant, Databricks, Medical Imaging, and Psychiatry workgroups.

Videos for both parts of the Feb. 18 community call are available below.

Community Updates

• Congratulations to the team of Alicia Abellan, Edward Burn, Nhung T. H. Trinh, Theresa Burkard, Alison Callahan, Sergio Fernández-Bertolín, Eimir Hurley, Clara Rodriguez, Elena Segundo, Daniel R. Morales, Hedvig M. E. Nordeng, and Talita Duarte-Salles on the recent publication of Expanding the OMOP Common Data Model to Support Perinatal Research in Network Studies in Pharmacoepidemiology & Drug Safety.

• Congratulations to the team of Aurora Quaye, John DiPalazzo, Kristin Kostka, Janelle Richard, Blaire Beers-Mulroy, Meredith Peck, Robert Krulee, and Yi Zhang on the publication of Harmonizing population health data into OMOP common data model: a demonstration using COVID-19 sero-surveillance data from Nairobi Urban Health and Demographic Surveillance System in Frontiers in Digital Health.

• Asieh Golozar announced that the iCAN mNSCLC Studyathon 2025 will be held March 25-28 I Helsinki, Finlad, and the focus is “Exploring the Real-World Treatment Landscape of mNSCLC​.” The event will focus on characterizing real-world treatment patterns of metastatic NSCLC, with a focus on the adoption and impact of immune checkpoint inhibitors (ICIs) across different regions. Reach out to Asieh Golozar ([email protected]) for more information or if you wish to contribute.

• Phenotype Phebruary continues this week, with a focus on evaluating cohorts using CohortDiagnostics for the phenotypes that will be used in the guideline-driven evidence opportunities presented last month. You can follow everything going on in Phenotype Phebruary and contribute wherever you can.

• The goal of the OHDSI Rare Disease Working Group is to advance the understanding and treatment of rare diseases by leveraging real-world data, uniting multidisciplinary experts, and developing innovative methodologies to improve patient outcomes and inform clinical decision-making. The workgroup has posted a brief interest survey to help shape a productive and collaborative community. Please fill out this survey by Tuesday, Feb. 18.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Going global, redeeming the local: an innovative approach to implement the OMOP CDM in two countries of the Global South (Valentina Martufi)
Tuesday — A Computable Phenotype for HSV Anterior Uveitis: Operationalizing the SUN Classification Criteria (Brian Toy)
Wednesday — Comparative Evaluation of Methods for Defining Observation Periods in Healthcare Databases and Their Impact on Incidence Rate Estimates (Clair Blacketer)
Thursday — How Often: Large Scale Incidence Rate Calculation of Health Outcomes for Drugs Nested by Indication (Hsin Yi Chen)
Friday — FinOMOP Swarm Learning – Deep learning for patient-specific modelling of Acute Myeloid Leukemia (Salma Rachidi)

Job Postings

• Monica Gerber shared a job opening for an Analytics Engineer at Fred Hutchinson Cancer Research Center in Seattle, Washington. As an Analytics Engineer, you will collaborate with our data science team to design, build, and maintain multi-modal data models that integrate various data sources. Your work will support AI-driven research and translational data science use cases, helping to advance our scientific and technological goals. More information and an application link are available here.

Slides

Phenotype Phebruary |  Workgroup OKRs | Community Updates

Videos

Phenotype Phebruary, Week 3

Workgroup OKRs, Week 3

Week 2 of Phenotype Phebruary is dedicated to developing concept sets and constructing logical frameworks for the phenotypes that will be used in the guideline-driven evidence opportunities presented last month, and our leads will discuss next steps in this process. 

OHDSI workgroups present opportunities for all community members to find a home for their talents and passions, and make meaningful contributions. Each year, workgroups discuss their mission, objectives and key results (OKRs) during February community calls. This video includes presentations by the Methods Research, Common Data Model, Evidence Network, Patient-Level Prediction (PLP), Early-Stage Researchers, Women of OHDSI, and ATLAS workgroups.

Videos for both parts of the Feb. 11 community call are available below.

Community Updates

• Congratulations to the team of Justin Quon, Christopher Long, William Halfpenny, Amy Chuang, Cindy Cai, Sally Baxter, Vamsi Daketi, Amanda Schmitz, Neil Bahroos, Benjamin Xu, and Brian Toy on the recent publication of Implementing a Common Data Model in Ophthalmology: Mapping Structured Electronic Health Record Ophthalmic Examination Data to Standard Vocabularies in Ophthalmology Science.

• Congratulations to the team of Aurora Quaye, John DiPalazzo, Kristin Kostka, Janelle Richard, Blaire Beers-Mulroy, Meredith Peck, Robert Krulee, and Yi Zhang on the publication of Identifying factors associated with persistent opioid use after total joint arthroplasty: a retrospective review in Pain Medicine.

• Congratulations to the team of Kevin Ouazzani, Xavier Ansolabehere, Florence Journeau, Alexandre Vidal, Nicolas Jaubourg, Maxime Doublet, Raphael Thollot, Arnaud Fabre, and Nicolas Glatt on the recent publication of Project Victoria: A pragmatic data model to automate RWE generation from the national French claims database in the Health Informatics Journal.

• Fourteen OHDSI collaborators provided presentations about guideline-driven evidence opportunities for community network studies. You can see those talks here, and share what studies you would like to join.

• The goal of the OHDSI Rare Disease Working Group is to advance the understanding and treatment of rare diseases by leveraging real-world data, uniting multidisciplinary experts, and developing innovative methodologies to improve patient outcomes and inform clinical decision-making. The workgroup has posted a brief interest survey to help shape a productive and collaborative community. Please fill out this survey by Tuesday, Feb. 18.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Evaluating the impact of different vocabulary versions on cohort definitions and CDM (Dmitry Dymshyts)
Tuesday — The state of federated health data networks globally in 2024 (Michael Briganti)
Wednesday — Comparison of Deep Learning and Conventional Strategies for Disease Onset Prediction: An OHDSI Network Study (Henrik John)
Thursday — Prediction of Severe Respiratory Infections in Patients with Diabetes (Nguyen Thi Kim Hien)
Friday — Visualising OMOP concept relationships with omopcept (Andy South)

Job Postings

• Monica Gerber shared a job opening for an Analytics Engineer at Fred Hutchinson Cancer Research Center in Seattle, Washington. As an Analytics Engineer, you will collaborate with our data science team to design, build, and maintain multi-modal data models that integrate various data sources. Your work will support AI-driven research and translational data science use cases, helping to advance our scientific and technological goals. More information and an application link are available here.

Slides

Phenotype Phebruary |  Workgroup OKRs | Community Updates

Videos

Phenotype Phebruary, Week 2 (tutorial breakouts below)

Workgroup OKRs, Week 2

Tutorial: Concept Set Creation (Tatiana Skugarevskaya)

Tutorial: Cohort Definition Creation (Kevin Haynes)

Welcome to Phenotype Phebruary 2025! Now in its fourth year, Phenotype Phebruary focuses on building upon the guideline-driven evidence opportunities presented last month, and the first week will focus on creating clinical descriptions for cohorts that may be used in these studies. This community call highlighted how and where this work can be done, and why it will provide the foundation for future work done in these network studies. You can follow updates on Phenotype Phebruary on this forum thread, and you can share your interest in joining the collaboration via this form.

OHDSI workgroups present opportunities for all community members to find a home for their talents and passions, and make meaningful contributions. Each year, workgroups discuss their mission, objectives and key results (OKRs) during February community calls. This session included presentations by the Health Systems Interest Group, Vocabulary, Rehabilitation, Perinatal and Reproductive Health, and the Steering Group. 

Videos for both presentations are available below.

Community Updates

• Congratulations to the team of Gyubeom Hwang, So Hee Lee, Dong Yun Lee, ChulHyoung Park, Hyun Woong Roh, Sang Joon Son, and Rae Woong Park on the recent publication of Age-related eye diseases and subsequent risk of mental disorders in older adults: A real-world multicenter study in the Journal of Affective Disorders.

• Congratulations to the team of Noah Jones, Ming-Chieh Shih, Elizabeth Healey, Chen Wen Zhai, Sonali Advani, Aaron Smith-McLallen, David Sontag, and Sanjat Kanjilal on the publication of Use of Machine Learning to Assess the Management of Uncomplicated Urinary Tract Infection in JAMA Network Open.

• Congratulations to the team of Seok Jun Park, Seungwon Yang, Suhyun Lee, Sung Hwan Joo, Taemin Park, Dong Hyun Kim, Hyeonji Kim, Soyun Park, Jung-Tae Kim, Won Gun Kwack, Sung Wook Kang, Yun-Kyoung Song, Jae Myung Cha, Sang Youl Rhee, and Eun Kyoung Chung on the recent publication of Machine-Learning Parsimonious Prediction Model for Diagnostic Screening of Severe Hematological Adverse Events in Cancer Patients Treated with PD-1/PD-L1 Inhibitors: Retrospective Observational Study by Using the Common Data Model in Diagnostics.

• Fourteen OHDSI collaborators provided presentations about guideline-driven evidence opportunities for community network studies. You can see those talks here, and share what studies you would like to join.

• The goal of the OHDSI Rare Disease Working Group is to advance the understanding and treatment of rare diseases by leveraging real-world data, uniting multidisciplinary experts, and developing innovative methodologies to improve patient outcomes and inform clinical decision-making. The workgroup has posted a brief interest survey to help shape a productive and collaborative community. Please fill out this survey by Tuesday, Feb. 18.

• The latest OHDSI newsletter is now available. It includes information about the 14 guideline-driven evidence opportunities presented in January, the monthly podcast, community updates, the latest collaborator spotlight, recent publications and presentations, and plenty more. If you don’t receive the newsletter each month, you can subscribe here.

• Dr. Cynthia Sung is an Adjunct Associate Professor for the Centre of Regulatory Excellence at Duke-National University of Singapore Medical School, teaching and developing curricula for the Graduate Certificate in Health Products Regulation. She is an active member of the OHDSI Community, primarily as co-lead for the OHDSI Africa Chapter and also participating in working groups for Clinical Trials and Pregnancy and Reproductive Health. She was honored with the 2023 Titan Award for Community Collaboration. In the latest collaborator spotlight, Cynthia discusses a career journey that has taken her around the world, the need for FAIR data in less-represented populations, exciting developments within Africa, and more.

Save The Dates

• The OHDSI Global Symposium will be held Oct. 7-9 at the Hyatt Regency Hotel in New Brunswick, NJ, USA. Agenda and registration information will be shared when available.

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — SMEs optimization with high precision data ingestion of CAPriCORN CDM onto OMOP at AllianceChicago (Andrew Hamilton)
Tuesday — Automating data standardization through ad hoc SNOMED modeling with LLM: proof of concept (Eduard Korchmar)
Wednesday — Is the Observed Protection of COVID-19 Vaccines Against Infection within 14 days Real or an Artifact? A Negative Control Outcomes-Based Investigation Using Real-World Data (Bingyu Zhang)
Thursday — Risk of Dysmetabolic Syndrome in Post-Acute COVID-19 Among Children and Adolescents: An EHR Cohort Study from the RECOVER Initiative (Yuqing Lei)
Friday — Advancing the OHDSI Analysis Viewer: Enhanced Performance, Integration, and User Experience (Nathan Hall)

Job Postings

• Monica Gerber shared a job opening for an Analytics Engineer at Fred Hutchinson Cancer Research Center in Seattle, Washington. As an Analytics Engineer, you will collaborate with our data science team to design, build, and maintain multi-modal data models that integrate various data sources. Your work will support AI-driven research and translational data science use cases, helping to advance our scientific and technological goals. More information and an application link are available here.

Slides

Phenotype Phebruary | Workgroup OKRs | Community Updates

Videos

Phenotype Phebruary, Week 1

Workgroup OKRs, Week 1 

One proposed focus for the OHDSI community is around guideline-driven evidence generation, and collaborators have started to share potential opportunities in this forum post. We heard more the following guideline-focused opportunities during our Jan. 28 community call. 1) Antithrombotic use post-PCI (Chang Hoon Han & Seng Chan You) 
2) Bladder cancer treatment (Asieh Golozar)
3) Rheumatology DMARD infection management (Christopher Mecoli)
4) Anesthesia post-operative care (Oleg Zhuk)
5) Schizophrenia pharmacotherapy (Tatiana Skugarevskaya)
6) Post-herpetic neuralgia management (Masha Khitrun)
7) TPO-RA to manage cytopenias in solid tumors (Vlad Korsik)
8) Diabetic retinopathy screening (Cindy Cai)
9) Osteoporosis management (Chen Yanover and Vanessa Rouach)
10) Melanoma PD-1/PD-L1 inhibitor therapy (Bohdan Khilchevskyi)
11) Pediatric vision screening (Michelle Hribar)

Please use this form to share which guideline-driven evidence opportunities you would like to contribute to, and how you plan to contribute to the evidence generation process.

Community Updates

• Congratulations to the team of Seok Jun Park, Seungwon Yang, Suhyun Lee, Sung Hwan Joo, Taemin Park, Dong Hyun Kim, Hyeonji Kim, Soyun Park, Jung-Tae Kim, Won Gun Kwack, Sung Wook Kang, Yun-Kyoung Song, Jae Myung Cha, Sang Youl Rhee, and Eun Kyoung Chung on the recent publication of Machine-Learning Parsimonious Prediction Model for Diagnostic Screening of Severe Hematological Adverse Events in Cancer Patients Treated with PD-1/PD-L1 Inhibitors: Retrospective Observational Study by Using the Common Data Model in Diagnostics.

• Each year, workgroup representatives join a February community call to present the mission, objectives and key results for their respective groups. These 2-4 minute presentations are recorded and posted on the Workgroups homepage on OHDSI.org. Please choose a date to sign up for a February date; once a date has at least 10 workgroups, it will be closed.

Save The Dates

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — NCO-Calibrated DID Analysis: Addressing Unmeasured Confounding in Difference-in-Differences Analyses Using Negative Control Outcomes Experiments (Dazheng Zhang)
Tuesday — Improving Team Science Through “Thons” Reflections on the April Olympians Community Event (Clair Blacketer, Melanie Philofsky)
Wednesday — Clinically validated line of therapy (LoT) algorithm for patients with metastatic Non-Small Cell Lung Cancer (mNSCLC) can be implemented using systemic anti-cancer therapy (SACT) in Observational Medical Outcomes Partnership (OMOP) database (Joana Moreira)
Thursday — Impact of phenotype error adjustment on background incidence of COVID19 vaccine adverse events of special interest (James Weaver)
Friday — End-to-End Implementation of a Workflow for Validating Semantic Mappings and Constructing Ontology Extensions (Jared Houghtaling)

Slides

Community Updates

Videos

Clinical Guideline Review

One proposed focus for the OHDSI community is around guideline-driven evidence generation, and collaborators have started to share potential opportunities in this forum post. We heard more about some of these guideline-focused opportunities (obesity, pneumonia, time varying treatment pathways) during our Jan. 21 community call, and we also learned about the BRIDGE Training Program from Marc Twagirumukiza. 

Community Updates

• Congratulations to the team of Mitchell Conover, Yasser Albogami, Jill Hardin, Christian Reich, Anna Ostropolets, Patrick Ryan, and the OHDSI Research Network on the recent publication of Glucagon-Like Peptide 1 Receptor Agonists and Chronic Lower Respiratory Disease Among Type 2 Diabetes Patients: Replication and Reliability Assessment Across a Research Network in Pharmacoepidemiology & Drug Safety.

• Congratulations to the team of Karamarie Fecho, Juan J. Garcia, Hong Yi, Griffin Roupe and Ashok Krishnamurthy on the recent publication of FHIR PIT: a geospatial and spatiotemporal data integration pipeline to support subject-level clinical research in BMC Medical Informatics and Decision Making.

• Congratulations to the team of Gowtham Rao, Azza Shoaibi, Rupa Makadia, Jill Hardin, Joel Swerdel, James Weaver, Erica Voss, Mitchell Conover, Stephen Fortin, Anthony Sena, Chris Knoll, Nigel Hughes, James Gilbert, Clair Blacketer, Alan Andryc, Frank DeFalco, Anthony Molinaro, Jenna Reps, Martijn Schuemie, and Patrick Ryan on the recent publication of CohortDiagnostics: Phenotype evaluation across a network of observational data sources using population-level characterization in PLOS One.

• Each year, workgroup representatives join a February community call to present the mission, objectives and key results for their respective groups. These 2-4 minute presentations are recorded and posted on the Workgroups homepage on OHDSI.org. Please choose a date to sign up for a February date; once a date has at least 10 workgroups, it will be closed.

• The CDM Survey subgroup invites colleagues who have or are going to design, develop, and/or implement research surveys and use them with the OMOP CDM to share information about those efforts by completing this survey. Your completion of this 10-15 minute survey will provide information to the CDM workgroup about OMOP utilization among survey research teams.  The CDM Survey subgroup is a collaborative effort, led by a team at the National Cancer Institute, to develop standardized approaches and best practices for helping research teams better integrate survey data elements into the OMOP common data model. The survey will remain open through mid-January.

Save The Dates

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Leveraging UDI for Advanced Medical Device Tracking in OMOP-CDM (Seojeong Shin)
Tuesday — OMOP on a Data Lake: Addressing the Critical Need for Scalable Solutions in Healthcare Data Management with OHDSI Tools and AWS Services (Lance Eighme)
Wednesday — Generalizable Approaches for Medical Term Normalization (Jacob Berkowitz)
Thursday — Exploring the interplay between metabolic syndrome and brain volume in depression: Basis for Phenotype-Based Classification (Sujin Gan)
Friday — Quantifying the opioid use disorder crisis: PULSNAR finds nearly 3/4 undiagnosed (Praveen Kumar)

Slides

Bridge Training Program | Community Updates

Videos

Bridge Training Program (Marc Twagirumukiza) 

Clinical Guideline Review (Chungsoo Kim, Anna Ostropolets, Kevin Haynes)

We shared some potential focuses for 2025 during the Jan. 7 community call, and they each require collaboration within the community. During this call, we provided a forum to discuss opportunities, meet new potential collaborators and ideally build connections that can spark this work.

Community Updates

• Congratulations to the team of Melissa Finster, Maxim Moinat and Elham Taghizadeh on the recent publication of ETL: From the German Health Data Lab data formats to the OMOP Common Data Model in PLOS One.

• Congratulations to the team of Martijn Schuemie, Anna Ostropolets, Aleh Zhuk, Uladzislau Korsik, Seung In Seo, Marc Suchard, George Hripcsak and Patrick Ryan on the recent publication of Standardized patient profile review using large language models for case adjudication in observational research in NPJ Digital Medicine.

• Congratulations to the team of Noah Hong, Yeh-Hee Ko, Jeong Hyun Park, Eun Jin Ha, Sung Ho Lee, Kang Min Kim, Hyun-Seung Kang, Jeong Eun Kim, Kwangsoo Kim, and Won-Sang Cho on the recent publication of A common data model for oral anticoagulants-related risk of spontaneous intracranial hemorrhage in the Journal of Clinical Neuroscience.

• Congratulations to the team of Young-Eun Kwon, Shin-Young Ahn, Gang-Jee Ko, Young-Joo Kwon and Ji-Eun Kim on the recent publication of Impact of Uric Acid Levels on Mortality and Cardiovascular Outcomes in Relation to Kidney Function in the Journal of Clinical Medicine.

• Congratulations to the team of Mitchell Conover, Patrick Ryan, Yong Chen, Marc Suchard, George Hripcsak, and Martijn Schuemie on the recent publication of Objective study validity diagnostics: a framework requiring pre-specified, empirical verification to increase trust in the reliability of real-world evidence in JAMIA.

• Each year, workgroup representatives join a February community call to present the mission, objectives and key results for their respective groups. These 2-4 minute presentations are recorded and posted on the Workgroups homepage on OHDSI.org. Please choose a date to sign up for a February date; once a date has at least 10 workgroups, it will be closed.

• The next edition of the CBER BEST Seminar Series will be Jan. 15, 2025 at 11 am ET. We are happy to welcome Sonia Hernández-Díaz, MD, DrPH, Professor of Epidemiology, Harvard T.H. Chan School of Public Health, who will provide a talk on “Emulation of Target Trial on Vaccinations During Pregnancy.” More information and the meeting link are available on the CBER BEST series homepage.

• The CDM Survey subgroup invites colleagues who have or are going to design, develop, and/or implement research surveys and use them with the OMOP CDM to share information about those efforts by completing this survey. Your completion of this 10-15 minute survey will provide information to the CDM workgroup about OMOP utilization among survey research teams.  The CDM Survey subgroup is a collaborative effort, led by a team at the National Cancer Institute, to develop standardized approaches and best practices for helping research teams better integrate survey data elements into the OMOP common data model. The survey will remain open through mid-January.

• All videos and slides from the main conference of the 2024 OHDSI Global Symposium are now available on the event homepage. You can also find the 136 posters and software demos from our collaborator showcase. Videos of all the tutorials have also been posted.

Save The Dates

• The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Lessons from mapping cancer information from European hospitals to ICD-O-3 conditions in OMOP (Lars Halvorsen)
Tuesday — Jackalope Plus Performance: Benchmarking and Competitors (Denys Kaduk)
Wednesday — Trade-offs in the design of explainable prediction models for health care (Aniek Markus)
Thursday — An interactive approach for data exploration and phenotyping in the Data2Evidence platform (Satish Anbazhagan)
Friday — An Active Safety Surveillance Using Real-World Evidence (ASSURE) Approach to Pharmacovigilance Signal Evaluation: The case of infliximab and alternative autoimmune conditions (Kevin Haynes)

Slides

Where Can OHDSI Go In 2025? | Community Updates

Video

Breakouts were not recorded

OHDSI kicked off its 2025 community calls with a session focused on where we can go together over the next 12 months. Patrick Ryan highlighted four focus areas for the community: guideline-driven evidence generation, evidence-driven data standardization, evidence-driven open-source development, and evidence-driven collaborative education. There were details about monthly events, and upcoming clinical/scientific conferences over the next 18 months that can be end goals for dissemination. 

Community Updates

• Congratulations to the team of Shuxin Zhang, Ronald Cornet and Nirupama Benis on the recent publication of Cross-Standard Health Data Harmonization using Semantics of Data Elements in Scientific Data.

• Congratulations to the team of Tobias Freyberg Justesen, Adile Orhan, Andreas Weinberger Rosen, Mikail Gögenur, and Ismail Gögenur on the recent publication of Mismatch Repair Status and Surgical Outcomes in Localized Colorectal Cancer: A Nationwide Cohort Study in Annals of Surgery Open.

• Congratulations to the team of Rowdy de Groot, Frank van der Graaff, Daniël van der Doelen, Michiel Luijten, Ronald De Meyer, Hekmat Alrouh, Hedy van Oers, Jacintha Tieskens, Josjan Zijlmans, Meike Bartels, Arne Popma, Nicolette de Keizer, Ronald Cornet, and Tinca Polderman on the recent publication of Implementing Findable, Accessible, Interoperable, Reusable (FAIR) Principles in Child and Adolescent Mental Health Research: Mixed Methods Approach in JMIR Mental Health.

• Congratulations to the team of Chen Yanover, Ramit Magen-Rimon, Erica A. Voss, Joel Swerdel, Anna Sheahan, Nathan Hall, Jimyung Park, Rae Woong Park, Kwang Jae Lee, Sung Jae Shin, Seung In Seo, Kyung-Joo Lee, Thomas Falconer, Leonard Haas, Paul Nagy, Mary Grace Bowring, Michael Cook, Steven Miller, Tal El-Hay, Maytal Bivas-Benita, Pinchas Akiva, Yehuda Chowers and Roni Weisshof on the recent publication of Characteristics and Outcomes of Over a Million Patients with Inflammatory Bowel Disease in Seven Countries: Multinational Cohort Study and Open Data Resource in Digestive Diseases & Sciences.

• Congratulations to the team of Yu Jeong Lee, Jinmi Kim, Dong Han Yu, Nam Kyung Je and Harin Rhee on the recent publication of Long-term use of proton pump inhibitors was associated with rapid progression to end stage kidney disease in a Korean nationwide study in Scientific Reports.

 • Congratulations to the team of Harry-Anton Talvik, Marek Oja, Sirli Tamm, Kerli Mooses, Dage Särg, Marcus Lõo, Õie Renata Siimon, Hendrik Šuvalov, Raivo Kolde, Jaak Vilo, Sulev Reisberg, and Sven Laur on the recent publication of Repeatable process for extracting health data from HL7 CDA documents in the Journal of Biomedical Informatics.

• Congratulations to the team of Anna O. Basile, Anurag Verma, Leigh Anne Tang, Marina Serper, Andrew Scanga, Ava Farrell, Brittney Destin, Rotonya M. Carr, Anuli Anyanwu-Ofili, Gunaretnam Rajagopal, Abraham Krikhely, Marc Bessler, Muredach P. Reilly, Marylyn D. Ritchie, Nicholas P. Tatonetti, and Julia Wattacheril on the recent publication of Rapid identification and phenotyping of nonalcoholic fatty liver disease patients using a machine-based approach in diverse healthcare systems in Clinical and Translational Science.

• Congratulations to the team of Rowdy de Groot, Savannah Glaser, Alexandra Kogan, Stephanie Medlock, Anna Alloni, Matteo Gabetta, Szymon Wilk, Nicolette de Keizer, and Ronald Cornet on the recent publication of ATC-to-RxNorm mappings – A comparison between OHDSI Standardized Vocabularies and UMLS Metathesaurus in the International Journal of Medical Informatics.

• Save The Date! The OHDSI Europe Symposium will be hosted by the OHDSI Belgium Node on 5-7 July 2025 in the “Old Prison” building of Hasselt University in Hasselt, Belgium. Agenda and registration information will be shared when available.

• Each year, workgroup representatives join a February community call to present the mission, objectives and key results for their respective groups. These 2-4 minute presentations are recorded and posted on the Workgroups homepage on OHDSI.org. Please choose a date to sign up for a February date; once a date has at least 10 workgroups, it will be closed.

• The next edition of the CBER BEST Seminar Series will be Jan. 15, 2025 at 11 am ET. We are happy to welcome Sonia Hernández-Díaz, MD, DrPH, Professor of Epidemiology, Harvard T.H. Chan School of Public Health, who will provide a talk on “Emulation of Target Trial on Vaccinations During Pregnancy.” More information and the meeting link are available on the CBER BEST series homepage.

• The latest edition of The Journey Newsletter is now available. The latest edition reflects back on 2024, highlights 10 recent published studies, and includes community updates, the latest collaborator spotlight, OHDSI presentations, and more.

• The CDM Survey subgroup invites colleagues who have or are going to design, develop, and/or implement research surveys and use them with the OMOP CDM to share information about those efforts by completing this survey. Your completion of this 10-15 minute survey will provide information to the CDM workgroup about OMOP utilization among survey research teams.  The CDM Survey subgroup is a collaborative effort, led by a team at the National Cancer Institute, to develop standardized approaches and best practices for helping research teams better integrate survey data elements into the OMOP common data model. The survey will remain open through mid-January.

• All videos and slides from the main conference of the 2024 OHDSI Global Symposium are now available on the event homepage. You can also find the 136 posters and software demos from our collaborator showcase. Videos of all the tutorials have also been posted.

OHDSI Social Showcase

• Research from the 2024 Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X and Instagram feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Institutionalizing data interoperability and the application of common data models in a health data and research center: CIDACS’ experience in Brazil (Valentina Martufi)
Tuesday —Characterizing Phenotype Descriptions in All of Us Publications (Emily Clark)
Wednesday — Fine-Tuning Foundational AI Models to Code Diagnoses from Veterinary Health Records (Mayla R. Boguslav)
Thursday — Brain-penetrant calcium channel blockers for psychiatric use: revisiting the evidence for benefit (David Kern)
Friday —CohortOperations: A Modular Web Tool for Enhanced Cohort Analysis on the OMOP-CDM (Javier Gracia-Tabuenca)

Slides

Where Can OHDSI Go In 2025? | Community Updates

Video