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@OHDSI

Observational Health Data Sciences and Informatics

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  1. CommonDataModel CommonDataModel Public

    Definition and DDLs for the OMOP Common Data Model (CDM)

    HTML 1.1k 513

  2. Vocabulary-v5.0 Vocabulary-v5.0 Public

    Build process for the OHDSI Standardized Vocabularies. Currently not available as independent release.

    PLpgSQL 275 75

  3. Atlas Atlas Public

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

    JavaScript 328 155

  4. Cyclops Cyclops Public

    Cyclops (Cyclic coordinate descent for logistic, Poisson and survival analysis) is an R package for performing large scale regularized regressions.

    C++ 44 36

  5. CohortMethod CohortMethod Public

    An R package for performing new-user cohort studies in an observational database in the OMOP Common Data Model.

    R 92 69

  6. PatientLevelPrediction PatientLevelPrediction Public

    An R package for performing patient level prediction in an observational database in the OMOP Common Data Model.

    R 223 96

Repositories

Showing 10 of 391 repositories
  • DataQualityDashboard Public

    A tool to help improve data quality standards in observational data science.

    OHDSI/DataQualityDashboard's past year of commit activity
    JavaScript 190 118 54 13 Updated Oct 17, 2026
  • Circepy Public

    [under development] A one to one python implementation of the circe-be cohort definition classes

    OHDSI/Circepy's past year of commit activity
    Python 6 1 5 1 Updated Oct 17, 2026
  • ohdsi-uk Public
    OHDSI/ohdsi-uk's past year of commit activity
    R 0 1 1 0 Updated Oct 17, 2026
  • Pegasus Public

    Phenotype Evaluation and Generation by AI-assisted Synthesis & User Specifications

    OHDSI/Pegasus's past year of commit activity
    R 1 0 0 0 Updated Oct 16, 2026
  • Keeper Public

    A tool to support case validation

    OHDSI/Keeper's past year of commit activity
    R 10 5 5 0 Updated Oct 16, 2026
  • Data2Evidence Public

    Data2Evidence is an end-to-end solution for management and analysis of OMOP data - https://data2evidence.org

    OHDSI/Data2Evidence's past year of commit activity
    TypeScript 44 Apache-2.0 13 499 40 Updated Oct 16, 2026
  • Pythia Public

    AI cohort-design advisor for ATLAS 3.0

    OHDSI/Pythia's past year of commit activity
    Clojure 3 Apache-2.0 1 0 0 Updated Oct 16, 2026
  • Atlas3 Public

    A complete reimplementation of OHDSI ATLAS for cohort definition and analysis, built with Vue 3 and TypeScript.

    OHDSI/Atlas3's past year of commit activity
    TypeScript 11 Apache-2.0 6 3 3 Updated Oct 16, 2026
  • ETL-LambdaBuilder Public

    CDM Builder leveraging AWS Lambda

    OHDSI/ETL-LambdaBuilder's past year of commit activity
    C# 21 Apache-2.0 17 0 0 Updated Oct 16, 2026
  • ImageWG Public

    Repository for medical image working group

    OHDSI/ImageWG's past year of commit activity
    Rich Text Format 15 Apache-2.0 6 13 2 Updated Oct 16, 2026