Welcome To OHDSI

The OHDSI research community strives to promote better health decisions and care through globally standardized health data, continuously developing large-scale analytics and a spirit of collaboration though open science.

Founded in 2014, the Observational Health Data Sciences and Informatics (OHDSI, pronounced “Odyssey”) initiative has both a growing network of interdisciplinary researchers from six continents, as well as standardized health records for nearly 600 million unique patients around the world.

OHDSI studies in the areas of clinical applications and methodological research have been published in the world’s top medical journals, including The Lancet, Journal of Biomedical Informatics, and JAMIA.

OHDSI also provides support to regulatory agencies. The EMA cited OHDSI methods in its most recent guidelines around scientific best practices, while the U.S. FDA awarded a $10 million contract to OHDSI in 2020 to provide support to the BEST program around vaccine surveillance.

Join The Journey

As a community, we are collaborating towards improving health outcomes for patients around the world. To achieve this goal, we are developing open-source analytic tools and generating high-quality evidence to inform medical decision making.

Whether you’re a software developer, physician or clinical researcher, there is a place for everyone in the OHDSI community.

Want to Join The Journey? Here are a few ways you can get started!

OHDSI Latest News & Updates

OHDSI Work on Vaccine Surveillance Highlighted In Community Presentation

Collaborator Spotlight:
Seng Chan You

Curious About Current COVID-19 Research? Learn More About Ongoing Studies