cohort
Description
The COHORT table contains records of subjects that satisfy a given set of criteria for a duration of time. The definition of the cohort is contained in the COHORT_DEFINITION table. This is a new table introduced in CDM v5.4.
Standard Clinical Data Table
Table Columns
| field | type | required |
|---|---|---|
| cohort_definition_id | integer | Yes |
| subject_id | integer | Yes |
| cohort_start_date | date | Yes |
| cohort_end_date | date | Yes |
Columns Description
cohort_definition_id
A foreign key to a record in the COHORT_DEFINITION table containing relevant Cohort Definition information.
subject_id
A foreign key to the subject in the cohort. These could be referring to the person, provider, visit record etc.
cohort_start_date
The date when the Cohort Definition criteria for the Person, Provider or Visit first match.
cohort_end_date
The date when the Cohort Definition criteria for the Person, Provider or Visit cease to match or the Cohort Definition end date.