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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 1k 486

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

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

    PLpgSQL 259 75

  3. Atlas Atlas Public

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

    JavaScript 307 147

  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++ 42 33

  5. CohortMethod CohortMethod Public

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

    R 89 69

  6. PatientLevelPrediction PatientLevelPrediction Public

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

    R 213 91

Repositories

Showing 10 of 370 repositories
  • CohortGenerator Public

    Cohort Generation for the OMOP Common Data Model

    OHDSI/CohortGenerator’s past year of commit activity
    R 14 15 22 (1 issue needs help) 5 Updated Feb 18, 2026
  • PhenotypeR Public
    OHDSI/PhenotypeR’s past year of commit activity
    R 6 Apache-2.0 1 48 1 Updated Feb 18, 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 4 1 7 3 Updated Feb 18, 2026
  • AtlasWebAPISandbox Public

    Area for proof-of-concept ideas for future ideas for Atlas/WebAPI

    OHDSI/AtlasWebAPISandbox’s past year of commit activity
    Java 0 Apache-2.0 2 0 1 Updated Feb 18, 2026
  • Characterization Public

    Various types of characterizations of a target and outcome cohort.

    OHDSI/Characterization’s past year of commit activity
    R 3 5 10 1 Updated Feb 18, 2026
  • Vocabulary-v5.0 Public

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

    OHDSI/Vocabulary-v5.0’s past year of commit activity
    PLpgSQL 259 Unlicense 75 250 16 Updated Feb 18, 2026
  • PatientLevelPrediction Public

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

    OHDSI/PatientLevelPrediction’s past year of commit activity
    R 213 91 39 (1 issue needs help) 5 Updated Feb 18, 2026
  • FeatureExtraction Public

    An R package for generating features (covariates) for a cohort using data in the Common Data Model.

    OHDSI/FeatureExtraction’s past year of commit activity
    R 71 62 50 (1 issue needs help) 5 Updated Feb 18, 2026
  • gaiaCatalog Public

    A new repository for the OHDSI GIS WG

    OHDSI/gaiaCatalog’s past year of commit activity
    Python 1 Apache-2.0 0 15 (1 issue needs help) 0 Updated Feb 18, 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 32 Apache-2.0 10 271 38 Updated Feb 18, 2026

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