WEEKLY COMMUNITY CALL MEETING
Master the KEEPER R package to bring new levels of precision to your phenotype evaluation during Week 2 of Phenotype Ap(h)ril. Join us on April 14 at 11 am ET for an interactive community call where Patrick Ryan will demonstrate real-time case adjudication using this essential tool. Don’t miss this opportunity to see KEEPER in action and elevate the rigor of your phenotype development process.
Everybody is invited. If you didn’t receive a call invite, please use this link to join. The call schedule and previous recordings can be found on the community calls page.
WEEKLY WORKING GROUP MEETINGS
Upcoming Workgroup Calls – OHDSI
OHDSI SHOUTOUTS
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.
OHDSI UPDATES
Registration and the call for participation are now open for the 2026 OHDSI Global Symposium, held Oct. 20–22 at the Hyatt Regency in New Brunswick, N.J. The deadline to submit your brief report(s) for the Collaborator Showcase is June 5 at 8 pm ET.
• The first OHDSI Latin America Symposium will be held July 30-31 in Salvador, Brazil. The event will include multiple workshops, including sessions focused on Introduction to OMOP, Cohort building, ETL for OMOP, and Scientific collaboration: opportunities for network studies in Latin America. Please help the organizing committee identify relevant stakeholders to represent the region; reach out to [email protected] or [email protected] to provide assistance.
• Ready to turn your data harmonization vision into reality? Join The OMOP School in Stockholm, Sweden May 26-29 for a hands-on bootcamp designed to help you master the OMOP Common Data Model and execute end-to-end mini-harmonization projects. Whether you are a data scientist, researcher, or health data custodian, this intensive workshop provides the actionable tools and OHDSI methods needed to transform your institutional research capabilities.
• The second OHDSI Maternal Health Fellowship is designed to train clinical investigators for improved maternal and neonatal care. This fellowship offers three key components: Career Development, Practice, and Networking. Supported by both the OHDSI community and the NIH IMPROVE initiative, the program focuses on training clinical investigators in observational research methods to enable them to conduct reproducible research and generate real-world evidence. Learn more and register here. The deadline to apply is May 15.
• The OHDSI community has published more than 950 peer-review studies highlighting the OMOP CDM or OHDSI tools. Learn more about OHDSI research via our improved Community Dashboard. Thank you to our collaborators at Johns Hopkins for leading this initiative.
• 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.
OHDSI SOCIAL SHOWCASE
Research from the 2025 Global Symposium Collaborator Showcase is being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky social channels as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:
Monday — Enhancing Empirical Comparator Recommendations With User Specified Weights: Approach and Assessment (Cameron R. Atkins)
Tuesday — Summarizing FHIR® to OMOP Transformation Exceptions using Generative AI (Ron Sweeney)
Wednesday — Athena-Client: A Community Python SDK for Programmatic Access to the OHDSI Athena Vocabulary Repository (Alvaro A. Alvarez)
Thursday — Evaluating confounding adjustment when sample size is small (Fleur Vereijken)
Friday — Fix What’s Broke: A Use Case-Driven Framework for Vocabulary Update and Maintenance (Asieh Golozar)
UPCOMING OHDSI EVENTS
The 2026 OHDSI Europe Symposium will be held April 18-20 in Rotterdam, Netherlands, and registration is open. All details are available on the event homepage.
• The first OHDSI Latin America Symposium will be held July 30-31 in Salvador, Brazil. The event will include multiple workshops, including sessions focused on Introduction to OMOP, Cohort building, ETL for OMOP, and Scientific collaboration: opportunities for network studies in Latin America.
• The UK Symposium will be held September 18 at the University of Nottingham, preceded by an OMOP Training Day on September 17. The call for abstracts has opened, and the deadline is set for May 1.
• Registration and the call for participation are now open for the 2026 OHDSI Global Symposium, held Oct. 20–22 at the Hyatt Regency in New Brunswick, N.J. You can also read more about our 12 new tutorial offerings which will take place during Day 1 of the event. The deadline to submit your brief reports for the Collaborator Showcase is June 5 at 8 pm ET.
Book Your Hyatt Regency Guestroom Here–
OHDSI MSTEAMS
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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
