Version Domain Sequence Variable Label Type Controlled Terminology or Format Role CDISC Notes Core
SDTMIG 3.3 RELSUB 1 STUDYID Study Identifier Char Identifier Unique identifier for a study. Req
SDTMIG 3.3 RELSUB 2 USUBJID Unique Subject Identifier Char Identifier Identifier used to uniquely identify a subject across all studies for all applications or submissions involving the product. Either USUBJID or POOLID must be populated. Exp
SDTMIG 3.3 RELSUB 3 POOLID Pool Identifier Char Identifier Identifier used to identify a pool of subjects. If POOLID is entered, POOLDEF records must exist for each subject in the pool and USUBJID must be null. Either USUBJID or POOLID must be populated. Perm
SDTMIG 3.3 RELSUB 4 RSUBJID Related Subject or Pool Identifier Char Identifier Identifier used to identify a related subject or pool of subjects. RSUBJID will be populated with either the USUBJID of the related subject or the POOLID of the related pool. Req
SDTMIG 3.3 RELSUB 5 SREL Subject Relationship Char (RELSUB) Record Qualifier Describes the relationship of the subject identified in USUBJID or the pool identified in POOLID to the subject or pool identified in RSUBJID. Req