OHDSI/Atlas

ATLAS is an open source software tool for researchers to conduct scientific analyses on standardized observational data

321

stars

1,572

commits

JavaScript

primary language

Aug 18, 2026

updated

atlas-demo.ohdsi.org/

README

ATLAS

ATLAS is an open source software tool for researchers to conduct scientific analyses on standardized observational data converted to the OMOP Common Data Model V5. Researchers can create cohorts by defining groups of people based on an exposure to a drug or diagnosis of a particular condition using healthcare claims data. ATLAS has vocabulary searching of medical concepts to identify people with specific conditions, drug exposures etc. Patient profiles can be viewed within a specific cohort allowing visualization of a particular subject's health care records. Population effect level estimation analyses allows for comparison of two different cohorts and leverages R packages.

Resources

Technology

ATLAS is built using HTML, CSS and Knockout JavaScript. For more information on using Atlas, please refer to the setup guide.

Dependencies

Getting Involved

License

ATLAS is licensed under Apache License 2.

Contributors

(top 30 of 45)

Sigfried

233 commits

chrisknoll

203 commits

anthonysena

192 commits

fdefalco

177 commits

OHDSI/Atlas

ATLAS is an open source software tool for researchers to conduct scientific analyses on standardized observational data

321

stars

1,572

commits

JavaScript

primary language

Aug 18, 2026

updated

atlas-demo.ohdsi.org/

README

ATLAS

ATLAS is an open source software tool for researchers to conduct scientific analyses on standardized observational data converted to the OMOP Common Data Model V5. Researchers can create cohorts by defining groups of people based on an exposure to a drug or diagnosis of a particular condition using healthcare claims data. ATLAS has vocabulary searching of medical concepts to identify people with specific conditions, drug exposures etc. Patient profiles can be viewed within a specific cohort allowing visualization of a particular subject's health care records. Population effect level estimation analyses allows for comparison of two different cohorts and leverages R packages.

Resources

Technology

ATLAS is built using HTML, CSS and Knockout JavaScript. For more information on using Atlas, please refer to the setup guide.

Dependencies

Getting Involved

License

ATLAS is licensed under Apache License 2.

Contributors

(top 30 of 45)

Sigfried

233 commits

chrisknoll

203 commits

anthonysena

192 commits

fdefalco

177 commits

Languages

JavaScript

61.0%

HTML

34.5%

CSS

2.1%

Less

2.1%