This Week In OHDSI

The OHDSI community prides itself on global collaboration through open science. As a virtual community with collaborators on six different continents, we have weekly meetings to present research, share information, and keep each other updated on both current and upcoming projects. We hold these meetings on Tuesdays at 11 am ET in our Microsoft Teams environment. If you don’t have access to this, please fill out this form.

You can learn about our weekly calls, including the upcoming schedule of topics, and see materials (videos/slides/shoutouts) from previous calls by visiting our Community Calls page.

OHDSI has a variety of ongoing projects led by workgroups. Each workgroup has its own leadership team which determines the project’s objectives, goals and artifacts to be contributed to the community. Workgroup participation is open to all who have an interest in contributing to the project objectives and goals. Workgroups may be long-standing, strategic objectives or short-term projects to accomplish a specific need in the community. Each of the workgroups has its own home in the Teams environment, and you can get access to these groups by filling out this form (please note that you must have Teams access first, which is available through the first form linked above).

Please use our Upcoming Workgroup Calls page to see the upcoming schedule of calls (and appropriate links), as well as the standard schedule of calls for each group (weekly, bi-weekly, monthly, etc.).

The weekly update is below. If you missed any previous updates, or are looking for links to past updates or presentations, they are stored on our weekly Community Calls page.

We hope you will bring your talents, interests, curiosity and enthusiasm to OHDSI by joining both our weekly community calls and the workgroups that most interest you. That is how you #JoinTheJourney.

WEEKLY UPDATE • July 27, 2021

The July 27 OHDSI Community Call focused on visualizations around Health Equity, and it also included a report from the HADES Unit-Test-A-Thon.

This was the second visualization challenge we have held during a community call, and we were happy to hear from Jake Gillberg, Joel Swerdel, Tony Sun, Jody-Ann McLeggon and Adam Black on this topic. You can still participate in this challenge by posting a visualization to the “OHDSI Viz Challenge July2021 Health Equity” channel on the main OHDSI team.

Also, Hina Khan, Adam Black and Martijn Schuemie joined the community call to discuss the HADES Unit-Test-A-Thon and its impact.


• Congratulations to the team of RuiJun Chen, Marc Suchard, Harlan Krumholz, Martijn Schuemie, Steven Shea, Jon Duke, Nicole Pratt, Christian Reich, David Madigan, Seng Chan You, Patrick Ryan, and George Hripcsak on the publication of “Comparative First-Line Effectiveness and Safety of ACE (Angiotensin-Converting Enzyme) Inhibitors and Angiotensin Receptor Blockers: A Multinational Cohort Study” in Hypertension.

• Congratulations to Nicholas Giangreco and Nicholas Tatonetti on the publication of “Evaluating risk detection methods to uncover ontogenic-mediated adverse drug effect mechanisms in children” in BioData Mining.

• Congratulations to Jin Ge, Mark Pletcher, Jennifer Lai, and members of the N3C Consortium on the publication of “Outcomes of SARS-CoV-2 Infection in Patients with Chronic Liver Disease and Cirrhosis: a N3C Study” in Gastroenterology.

Nega Gebreyesus announced the formation of the Africa Chapter within the OHDSI community. If you want to join this chapter (or any workgroup), please fill out this form.

• The OHDSI and EHDEN communities collaborated to host an E-Thon last week to expand the AESI study to new databases around Europe. Thanks to Kees van Bochove and Erica Voss for sharing about this during the call.

• The next APAC community call will be Thursday, and it will feature a presentation on the EUMAEUS (Evaluating Use of Methods for Adverse Event Under Surveillance) study. This will be from the June 29 OHDSI community call.

Dani Prieto-Alhambra announced to the community that his team at Oxford received NIHR funding to study the impact of COVID-19 vaccination on preventing Long COVID: a population-based cohort study using linked NHS data. Please reach out to Dani if you would like to collaborate with him.

• The next edition of the CBER BEST Initiative Seminar Series will be this Wednesday, July 28, at 11 am. Jessica Gronsbell (University of Toronto) will present a talk on “Statistical learning with electronic health records data.” The seminar series is open to everybody. More information and a registration link are available here.

• The CDM Working Group will be holding a Hack-a-Thon on August 18-19. In preparation for the symposium, the team will be readying CDM v5.4 by writing both R code and documentation of the model. Everybody is welcome to join, regardless of skill level.

• There will be a one-hour inaugural open HL7-OHDSI meeting on Wednesday, Aug. 4 at 10 am ET). This meeting goal is to provide an update on plans for the collaboration, and learn how you can get involved. Speakers will include Ed Hammond, George Hripcsak, Wayne Kubick (HL7), Christian Reich (OHDSI), Floyd Eisenberg (HL7), and Jon Duke (OHDSI). Look for more information in the coming days on the forum.


Community Updates


HADES Unit-Test-A-Thon Report

Health Equity Visualizations