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The following are expectations for how values in variables will groups group of records record given their hierarchy.
| Metadataspec |
|---|
| Variables | Record Grouping | Purpose of Grouping |
|---|
STUDYID | By Study | - All records with the same STUDYID value are a group of records that describe that study.
| DOMAIN | By Domain | - All records with the same DOMAIN value are a group of records that describe that domain.
| --CAT, --SCAT | Across Subjects | - --CAT and --SCAT values subset groups of tests within a domain and apply to all subjects within the domain.
| USUBJID | By Subject | - All records with the same USUBJID value are a group of records that describe that subject.
| --GRPID | For Subjects | - All records in the same domain with the same --GRPID value are a group of records within USUBJID.
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