VariableName VariableLabel Type Role Note Core
STUDYID Study Identifier Char Identifier Unique identifier for a study. Req
DOMAIN Domain Abbreviation Char Identifier Two-character abbreviation for the domain. Req
USUBJID Unique Subject Identifier Char Identifier Identifier used to uniquely identify a subject across all studies for all applications or submissions involving the product. Req
DDSEQ Sequence Number Num Identifier Sequence number given to ensure uniqueness of subject records within a domain. May be any valid number. Req
DDTESTCD Death Detail Assessment Short Name Char Topic Short name of the measurement, test, or examination described in DDTEST. It can be used as a column name when converting a dataset from a vertical to a horizontal format. The value in DDTESTCD cannot be longer than 8 characters, nor can it start with a number (e.g., "1TEST" is not valid). DDTESTCD cannot contain characters other than letters, numbers, or underscores. Examples: "PRCDTH", "SECDTH". Req
DDTEST Death Detail Assessment Name Char Synonym Qualifier Long name for DDTESTCD. The value in DDTEST cannot be longer than 40 characters. Examples: "Primary Cause of Death", "Secondary Cause of Death". Req
DDORRES Result or Finding as Collected Char Result Qualifier Result of the test defined in DDTEST, as originally received or collected. Exp
DDSTRESC Character Result/Finding in Std Format Char Result Qualifier Contains the result or finding copied or derived from DDORRES in a standard format. Exp
DDRESCAT Result Category Char Variable Qualifier Used to categorize the result of a finding. Examples: "TREATMENT RELATED", "NONTREATMENT RELATED", "UNDETERMINED", "ACCIDENTAL". Perm
DDEVAL Evaluator Char Record Qualifier Role of the person who provided the evaluation. Perm
DDDTC Date/Time of Collection Char Timing Date/time of collection of the diagnosis or other death assessment data in ISO 8601 format. This is not necessarily the date of death. Exp
DDDY Study Day of Collection Num Timing Study day of the collection, in integer days. The algorithm for calculations must be relative to the sponsor-defined RFSTDTC variable in the Demographics (DM) domain. Perm