OHDSI2021 Global Symposium

Welcome to the homepage for the 2021 OHDSI Global Symposium, which will be held Sept. 12-15 in a virtual environment. Registration is free, and it is open for our SEVENTH global symposium. Please check out all the activities that will be held during the biggest week of the OHDSI year, and please plan to join us for what is sure to be a memorable four days!

Register for OHDSI2021

Day 1 • Sunday, Sept. 12

Tutorial: Building Conceptsets

8 am - 5 pm (ET)

This tutorial will examine a foundational element to conducting a high-quality observational study: building conceptsets, or expressions to identify the list of concepts (representing either source codes like ICD-9 and ICD-10 or standards from vocabularies like SNOMED and RxNorm). 

There is more information in the video to the right, as well as on the tutorial homepage. Registration is limited, so please sign up soon if you are interested.

Tutorial Homepage
Register for Tutorial

Day 2 • Monday, Sept. 13

Workshop: OHDSI
Reproducibility Challenge

8 am - 5 pm (ET)

In this workshop, the ‘OHDSI reproducibility challenge’ will aim to reproduce the populations (exposures and outcomes) used in an analysis by Albogami et al (see workshop homepage for more details). We will also aim to quantify the heterogeneity of interpretations that qualified researchers may produce when attempting to reproduce the same study. The OHDSI reproducibility challenge is being conducted in collaboration with the lead author of the original study, though for the purposes of the workshop, only the information in the publication and supplemental materials will be used.

Teams will independently work on two study design tasks, to be implemented in OHDSI ATLAS: 1) define the target exposure cohort, and 2) create cohorts for the primary and secondary outcomes. All teams will be provided access to an ATLAS instance with an empty cohort definition template, pre-populated with the necessary conceptsets to produce the cohorts, such that the focus of the reproducibility is 

Workshop Homepage
Register as Collaborator
Register as Observer

limited to the logic of the cohort definitions and not selection of codes. Results for the OHDSI reproducibility challenge will be summarized for presentation and publication.

There is more information in the video to the right, as well as on the workshop homepage. You can either register as a collaborator or register as an observer for this workshop. 

Day 3 • Tuesday, Sept. 14

Main Symposium

Plenary: OHDSI Impact on the COVID-19 Pandemic

8 am - 7 pm (ET)

The first of the two main symposium days, the Sept. 14 session will open at 8 am ET with the annual State of the Community address; if you signed up for the special OHDSI surprise, you’ll want to have it for this session (if you didn’t, you will still be able to follow along). That will be followed by our first plenary session and our first Collaborator Showcase session. Make sure you check out the section about the Collaborator Showcase on this page below. 

8 am ET: State of the Community Address
9 am ET: Plenary Session (OHDSI Impact on the COVID-19 Pandemic)
11 am ET: Reaction Panel
1 pm ET: Collaborator Showcase
5 pm ET: Networking Session

Learn more about the plenary session!

Day 4 • Wednesday, Sept. 15

Main Symposium

Interactive Plenary: Generating Reliable Evidence

3 am - 5 pm (ET)

The second of the two main symposium days, the Sept. 15 session will open at 3 am ET with the second Collaborator Showcase session; the two sessions are being held at different times to encourage collaborators around the world to take part. More information on this is below. The second plenary session will follow at 8 am ET, and it will be an interactive session building off of the Day 2 workshop. The closing session, which will include Titan Award announcements, will follow, and then there will be a second networking session. 

3 am ET: Collaborator Showcase
8 am ET: Interactive Plenary Session (Generating Reliable Evidence)
11:30 am ET: Closing Session (includes Titan Award announcements)
12 pm ET: Networking Session

Learn more about the plenary session!

Collaborator Showcase in Gathertown!

Collaborator Showcase

Sept. 14: 1-5 pm ET / Sept. 15: 3-7 am ET

We want to facilitate more networking around community research and potential future collaborations during the 2021 Showcase, so we are moving a part of the session to GatherTown. Please watch Patrick Ryan’s description of the GatherTown space to the right. 

We will also have a Microsoft Teams option for the Collaborator Showcase, which will include all 16 lightning talks:

Hour 1: Advances in Data Standards
Hour 2: Advances in Methods Research
Hour 3: Advances in Clinical Applications
Hour 4: Advances in Open-Source Development and Community

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