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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 492

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

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

    PLpgSQL 263 76

  3. Atlas Atlas Public

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

    JavaScript 309 148

  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++ 43 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 215 93

Repositories

Showing 10 of 375 repositories
  • 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 11 4 Updated Apr 4, 2026
  • ohdsi-uk Public
    OHDSI/ohdsi-uk’s past year of commit activity
    R 0 1 1 0 Updated Apr 4, 2026
  • WebAPI Public

    OHDSI WebAPI contains all OHDSI services that can be called from OHDSI applications

    OHDSI/WebAPI’s past year of commit activity
    Java 148 Apache-2.0 178 133 (1 issue needs help) 31 Updated Apr 3, 2026
  • OmopSketch Public
    OHDSI/OmopSketch’s past year of commit activity
    R 4 Apache-2.0 3 18 4 Updated Apr 3, 2026
  • CohortPrevalence Public

    OHDSI package to calculate prevalence

    OHDSI/CohortPrevalence’s past year of commit activity
    R 0 Apache-2.0 2 2 1 Updated Apr 3, 2026
  • Ariadne Public

    A Python toolkit for mapping source terminologies to standard concepts in the OHDSI Vocabulary.

    OHDSI/Ariadne’s past year of commit activity
    Python 3 Apache-2.0 1 0 0 Updated Apr 3, 2026
  • OHDSI/WebApiWGSymposum2026’s past year of commit activity
    0 Apache-2.0 0 0 0 Updated Apr 3, 2026
  • ETL-LambdaBuilder Public

    CDM Builder leveraging AWS Lambda

    OHDSI/ETL-LambdaBuilder’s past year of commit activity
    C# 21 Apache-2.0 18 1 4 Updated Apr 3, 2026
  • OHDSI/CohortConstructor’s past year of commit activity
    R 10 Apache-2.0 3 65 4 Updated Apr 3, 2026
  • Ares Public

    A Research Exploration System

    OHDSI/Ares’s past year of commit activity
    Vue 17 Apache-2.0 7 35 1 Updated Apr 2, 2026

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