WEEKLY COMMUNITY CALL MEETING
Please join us for the March 24 community call (11 am ET) as we host our first OHDSI/OMOP Research Spotlight session of 2026. The OHDSI community has published more than 950 peer-review studies highlighting the OMOP CDM or OHDSI tools. Lead authors from three recent studies will share insights from their work.
• Berta Cuyás (Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona, CIBERehd)
Trends in incidence, prevalence, and survival of primary liver cancer in the United Kingdom (2000–2021) • European Journal of Public Health
• Cindy Cai (Johns Hopkins University)
Semaglutide and diabetic retinopathy: an OHDSI network study • BMJ Open Diabetes Research & Care
• Matthew Spotnitz (National Institutes of Health)
Assessing data quality of rheumatoid and psoriatic arthritis patients in the All of Us Research Program • JAMIA Open
Learn more about OHDSI research via our improved Community Dashboard.
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 Man Young Park, Jaeuk U. Kim, SunMi Choi, Youngheum Yoon, Byung-Kwan Seo, and Sangkwan Lee on the recent publication of Transforming Traditional Korean Medicine hospital EHRs into the OMOP common Data Model: methodology and implications in BMC Medical Informatics and Decision Making.
• Congratulations to the team of Khaoula El Mekkaoui, Chitra Mukherjee, Clodomir Santana, Hitalo Silva, Arnib Quazi, Meghana Balabhadruni, Aditya Ballal, Shamika Gavaskar, Kea Turqueza, Leslie Molina, Pablo Acevedo, Kay Moua, Omar Dawar, Federico Garcia, Mohammad S Soroya, XiaoDong Zhang, Ezra Amsterdam, Chao-Yin Chen, Padmini Sirish, Leighton Izu, Ronaldo Menezes, Nipavan Chiamvimonvat, Vladimir Filkov, Martin Cadeiras, and David A Liem on the recent publication of The impact of the Social Exposome in Cardiovascular Health and Disease in The Journal of Precision Health: Health and Disease.
• Congratulations to the team of Matthias Vanderkerken, Koen Van Eygen, Veerle Galle, Annelies Verbiest, Ann Janssens, Imke Masuy, Kristof Theys, Tine Cuppens, Katoo Muylle, and Ann De Becker on the recent publication of Leveraging Digital Technology and Artificial Intelligence to Describe the Real-World Belgian Chronic Lymphocytic Leukemia Patient Population: The BE-CLLEAR Study in JCO Clinical Cancer Informatics.
• Congratulations to the team of Francesco Pignatti, Tarec Christoffer El-Galaly, Martin Kaiser, Kimmo Porkka, Robin Doeswijk, Peter Mol, Donna R. Rivera, Catherine C. Lerro, Ulrich-Peter Rohr, Patrice Verpillat, Antonios Valachis, Dario Trapani, Massimo Di Maio, Nicola Latino, Raul Cordoba, Nathan Cherny, Miriam Koopman, Diogo Martins-Branco, George Pentheroudakis, and Douwe Postmus on the recent publication of Assessing Overall Survival Benefits in Advanced Cancers: The Role of External Comparator Cohort Studies with Real-World Data in Clinical Pharmacology & Therapeutics.
• Congratulations to the team of Montserrat León-García, Sergio Álvarez-Pérez, Janire Gesto-Gómez, Clara Urbano-Molina, Sonia Soto-Díaz, Juan Cárdenas-Valladolid, Luis Rodríguez-Rodríguez, Antonio Díaz-Holgado, Isabel Del Cura-González, Javier De La Cruz-Bertolo, Noelia García-Barrio, Juan Luis Cruz-Bermúdez, Cristina García-Fernández, Carlos Rodríguez-Antolín, Laila García-Aldars, Elsa María Moreda-Sánchez, Álvaro Roldán López, José María Veganzones Alonso-Cortés, Ana Isabel Gonzalez Gonzalez, Miguel A Salinero-Fort, and the HealthData@MAD-R&I Working Group on the recent publication of HealthData@MAD-R&I: Protocol for Design and Development of a Regional Health Data Infrastructure to Enable Secondary Use of Health Data in Research and Innovation in JMIR Research Protocols.
OHDSI UPDATES
• Attention, workgroup leads: There will be a workgroup leadership retreat this Friday, March 27, from 10-11:30 am ET in our MS Teams environment. If you didn’t receive the call invite, please reach out to Paul Nagy or Craig Sachson.
• 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 find 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.
• Several members of the OHDSI community led a pair of sessions during the 2025 UN General Assembly Science Summit last September. The title of the overall session was “Standardizing Health Data and Analytics to Accelerate Clinical Impact and Global Reach.” Both Session 1 and Session 2 are now available to watch.
• 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.
• 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. Please use this template to prepare your abstract and save it as a PDF, and start your file name with the surname (family name) of the presenting author.
• The Winter 2026 Vocabulary Release was shared recently, and members of the leadership team shared several key updates during the March 3 community call; you can watch that presentation now.
• Registration is now OPEN for the 2026 Europe Symposium, which will be held April 18-20 in Rotterdam. There were more than 140 submissions for the collaborator showcase, and those are currently being reviewed. The main conference agenda has been added to the event homepage.
• 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 — Building the OHDSI Evidence Network – A Global, Open, Federated Collaboration (Clair Blacketer)
Tuesday — Bridging FHIR and OMOP: Data Lineage for Observational Data Conversion (Benjamin Berk)
Wednesday — Creating a Standardized EHR Analytics Data Source for the National Cancer Institute’s Connect for Cancer Prevention Study (Edward A. Frankenberger)
Thursday — Evaluating the Quality of Positive Unlabeled Learning Methods if Unlabeled Instances Cannot be Validated (Praveen Kumar)
Friday — Agentic conversation on OMOP CDM: the OMCP-A2A foundation library (Niko Möller-Grell)
UPCOMING OHDSI EVENTS
The 2026 OHDSI Europe Symposium will be held April 18-20 in Rotterdam, Netherlands, and registration is open. The current agenda and registration info are both 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.
• The 2026 OHDSI Global Symposium will be held Oct. 20-22 at the Hyatt Regency Hotel in New Brunswick, N.J.
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
