VariableName VariableLabel Type Role Note Core
STUDYID Study Identifier Char Identifier Unique identifier for a study. Req
DOMAIN Domain Abbreviatio n 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
FTSEQ Sequence Number Num Identifier Sequence number to ensure uniqueness of records within a dataset for a subject. May be any valid number. Req
FTGRPID Group ID Char Identifier Optional group identifier, used to link together a block of related records within a subject in a domain. Per m
FTREFID Reference ID Char Identifier Optional internal or external identifier. Per m
FTSPID Sponsor-Defined Identifier Char Identifier Sponsor-defined identifier. Perhaps preprinted on the CRF as an explicit line identifier or defined in the sponsor's operational database. Example: Line number from the test page. Per m
FTTESTCD Short Name of Test Char Topic Short character value for FTTEST, which can be used as a column name when converting a dataset from a vertical format to a horizontal format. The value cannot be longer than 8 characters, nor can it start with a number (e.g., "1TEST" is not valid). FTTESTCD cannot contain characters other than letters, numbers, or underscores. Controlled terminology for FTTESTCD is published in separate codelists for each questionnaire. See https://www.cdisc.org/standards/semantics/terminology f or values for FTTESTCD. Examples: "W250101", "W25F0102". Req
FTTEST Name of Test Char Synony m Qualifier Verbatim name of the question used to obtain the finding. The value in FTTEST cannot be longer than 40 characters. Controlled terminology for FTTEST is published in separate codelists for each questionnaire. See https://www.cdisc.org/standards/semantics/terminology f or values for FTTEST. Examples: "W2501-25 Foot Walk Time", "W25F-More Than Two Attempts". Req
FTCAT Category Char Groupin g Qualifier Used to specify the functional test in which the functional test question identified by FTTEST and FTTESTCD was included. Req
FTSCAT Subcategor y Char Groupin g Qualifier Used to define a further categorization of FTCAT values. Per m
FTPOS Position of Subject During Observatio n Char Record Qualifier Position of the subject during the test. Examples: "SUPINE", "STANDING", "SITTING". Per m
FTORRES Result or Finding in Original Units Char Result Qualifier Result of the measurement or finding as originally received or collected. Exp
FTORRES U Original Units Char Variable Qualifier Original units in which the data were collected. Unit for FTORRES. Per m
FTSTRESC Result or Finding in Standard Format Char Result Qualifier Contains the result value for all findings, copied or derived from FTORRES in a standard format or in standard units. FTSTRESC should store all results or findings in character format; if results are numeric, they should also be stored in numeric format in FTSTRESN. Exp
FTSTRESN Numeric Result/Findi ng in Standard Units Num Result Qualifier Used for continuous or numeric results or findings in standard format; copied in numeric format from FTSTRESC. FTSTRESN should store all numeric test results or findings. Per m
FTSTRESU Standard Units Char Variable Qualifier Standardized units used for FTSTRESC and FTSTRESN. Per m
FTSTAT Completion Status Char Record Qualifier Used to indicate that a test was not done, or a test was attempted but did not generate a result. Should be null or have a value of "NOT DONE". Per m
FTREASND Reason Not Done Char Record Qualifier Describes why a test was not done, or a test was attempted but did not generate a result. Used in conjunction with FTSTAT when value is "NOT DONE". Per m
FTXFN External File Path Char Record Qualifier File path to an external file. Per m
FTNAM Vendor Name Char Record Qualifier Name or identifier of the vendor or laboratory that provided the test results. Per m
FTMETHO D Method of Test Char Record Qualifier Method of the test. Per m
FTLOBXFL Last Observatio n Before Exposure Flag Char Record Qualifier Operationally-derived indicator used to identify the last non-missing value prior to RFXSTDTC. The value should be "Y" or null. Exp
FTBLFL Baseline Flag Char Record Qualifier A baseline defined by the sponsor (could be derived in the same manner as FTLOBXFL or ABLFL, but is not required to be). The value should be "Y" or null. Note that FTBLFL is retained for backward compatibility. The authoritative baseline flag for statistical analysis is in an ADaM dataset. Per m
FTDRVFL Derived Flag Char Record Qualifier Used to indicate a derived record (e.g., a record that represents the average of other records such as a computed baseline). Should be "Y" or null. Per m
FTEVAL Evaluator Char Record Qualifier Role of the person who provided the evaluation. Used only for results that are subjective (e.g., assigned by a person or a group). Examples: "ADJUDICATION COMMITTEE", "INDEPENDENT ASSESSOR", "RADIOLOGIST". Per m
FTREPNU M Repetition Number Num Record Qualifier The incidence number of a test that is repeated within a given timeframe for the same test. The level of granularity can vary, e.g., within a time point or within a visit. For example, multiple measurements of blood pressure or multiple analyses of a sample. Per m
VISITNUM Visit Number Num Timing Clinical encounter number. Numeric version of VISIT, used for sorting. Exp
VISIT Visit Name Char Timing Protocol-defined description of a clinical encounter. Per m
VISITDY Planned Study Day of Visit Num Timing Planned study day of VISIT based upon RFSTDTC in Demographics. Should be an integer. Per m
TAETORD Planned Order of Element within Arm Num Timing Number that gives the planned order of the Element within the Arm for the element in which the assessment was made. Per m
EPOCH Epoch Char Timing Epoch associated with the observation date/time of the functional tests finding. Per m
FTDTC Date/Time of Test Char Timing Collection date and time of functional test. Exp
FTDY Study Day of Test Num Timing Actual study day of test expressed in integer days relative to the sponsor-defined RFSTDTC in Demographics. Per m
FTTPT Planned Time Point Name Char Timing Text description of time when a measurement or observation should be taken, as defined in the protocol. This may be represented as an elapsed time relative to a fixed reference point, such as time of last dose. See FTTPTNUM and FTTPTREF. Per m
FTTPTNUM Planned Time Point Number Num Timing Numeric version of planned time point used in sorting. Per m
FTELTM Planned Elapsed Time from Time Point Ref Char Timing Planned elapsed time relative to a planned fixed reference (FTTPTREF). Not a clock time or a date/time variable, but an interval, represented as ISO duration. Per m
FTTPTREF Time Point Reference Char Timing Description of the fixed reference point referred to by FTELTM, FTTPTNUM, and FTTPT. Examples: "PREVIOUS DOSE", "PREVIOUS MEAL". Per m
FTRFTDTC Date/Time of Reference Time Point Char Timing Date/time for a fixed reference time point defined by FTTPTREF. Per m