How to define a simple ICD case-control cohort in Atlas

In Atlas, a cohort definition starts by creating a Concept Set of medical codes of interest. The Concept Set is then used to create case and control cohorts using additional criteria defined in Cohort Definitions.

This example is a step-by-step guide to define a simple case and "all who are not cases" control cohort:

1. Select FinnGen data release in Atlas

2. Define a simple ICD Concept Set in Atlas

3. Define a simple ICD case cohort in Atlas

4. Define a simple ICD control cohort in Atlas