OMOP Common Data Model
  • Background
    • Model Background
    • CDM Refresh Process
    • How the Vocabulary is Built
  • Conventions
    • General Conventions
    • Observation Periods for EHR Data
    • Patient Privacy and OMOP
  • CDM Versions
    • CDM v3.0
    • CDM v6.0
    • CDM v5.3
    • NEW CDM v5.4
      • CDM v5.4
      • Changes from CDM v5.3
  • Proposals
    • Under Review
    • Accepted
      • Region_concept_id
  • How to
    • Download the DDL
    • Use the CDM R Package
    • Calculate Drug Dose
  • Support
    • FAQ
    • SQL Scripts
    • Ask a Question