Weekly OHDSI Digest – January 26, 2026

WEEKLY COMMUNITY CALL MEETING

Our January community calls have been focused on shaping a global impact for 2026. That conversation continues January 27 at 11 a.m. ET, when we’ll host an open brainstorm on innovation and education opportunities within our community. We invite you to bring your ideas, questions, and big-picture thinking to this collaborative discussion.

Everybody is invited. If you do not have a calendar invite, please use this link to join the meeting. All recordings from these weekly calls are available within our Teams environment and will be posted on both our YouTube page and our OHDSI.org Community Calls page

WEEKLY WORKING GROUP MEETINGS

Upcoming Workgroup Calls – OHDSI

OHDSI SHOUTOUTS

Congratulations to the team of George Hripcsak, Marc Suchard, Martijn Schuemie, and Patrick Ryan on the recent publication of Trust in Observational Research in the Journal of the American College of Cardiology (JACC).
Upcoming Workgroup Calls – OHDSI

OHDSI UPDATES

Workgroups will play an important role this year in both the OHDSI community and our community calls, starting with OKR announcements during the first two February sessions. Workgroup leads, please fill out this brief form to let us know when you would like to present OKRs and when/if you plan to lead a session about your workgroup.

• Registration is now OPEN for the 2026 Europe Symposium, which will be held April 18-20 in Rotterdam. Submissions for the collaborator showcase are due Feb. 6. The main conference agenda has been added to the event homepage.

• 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 tutorialsThe deadline for both is THIS FRIDAY, 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 Our 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.

Upcoming Events

• The 2026 OHDSI Europe Symposium will be held April 18-20 in Rotterdam, Netherlands, and registration is open. The deadline for abstract submissions is Feb. 6, and the current agenda is available o the event homepage.

• 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 Global Symposium Collaborator Showcase is being shared daily on OHDSI’s LinkedInTwitter/X, Instagram and Bluesky social channels as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:

Monday — Mapping Transplant Cohorts at University Health, San Antonio: Custom OMOP Concepts for Donors and Recipients (George “Holt” Oliver)

Tuesday — Maximizing EHR Semantic Meaning for Rare Diseases Utilizing a Direct Mapping Strategy (Melanie Philofsky)

Wednesday — Integrative Causal Machine Learning with Digital Twins: Calibration of Treatment Effects via Negative Control Outcomes (Yuqing Lei)

Thursday — Toward Accurate Identification of Fontan and TGA in OMOP CDM: Registry-Anchored Algorithm Validation (Seohu Lee)

Friday — DarwinBenchmark: Evaluating cohort generation and analytics in OMOP CDM databases (Ioanna Nika)

UPCOMING OHDSI EVENTS

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 MSTEAMS

Accessing MSTeams: To join OHDSI Teams, please fill out this form: Join OHDSI Teams
If you are already in the OHDSI Teams environment and you would like to join work groups in teams, please fill out this form: Join Workgroups, Chapters, and Studies

Duplicate email removal from OHDSI Teams: As you should always be using one email in OHDSI Teams when joining all workgroups, you may remove duplicate emails by filling out this form

To unsubscribe from Teams, please fill out this form

Please continue to collaborate in our MS Teams environment, check out the OHDSI website and forums , and follow us on all platforms, including Twitter and LinkedIn to get continued updates and information on everything happening in our community