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
QSSEQ Sequence Number Num Identifier Sequence Number given to ensure uniqueness of subject records within a domain. May be any valid number. Req
QSGRPID Group ID Char Identifier Used to tie together a block of related records in a single domain for a subject. Perm
QSSPID Sponsor-Defined Identifier Char Identifier Sponsor-defined reference number. Perhaps pre-printed on the CRF as an explicit line identifier or defined in the sponsor’s operational database. Example: Question number on a questionnaire. Perm
QSTESTCD Question Short Name Char Topic Topic variable for QS. Short name for the value in QSTEST, which can be used as a column name when converting the dataset from a vertical format to a horizontal format. The value in QSTESTCD cannot be longer than 8 characters, nor can it start with a number (e.g.”1TEST”). QSTESTCD cannot contain characters other than letters, numbers, or underscores. See QS Terminology Spreadsheet for specific text for QSTESTCD. Examples: ADCCMD01, BPR0103 Req
QSTEST Question Name Char Synonym Qualifier Verbatim name of the question or group of questions used to obtain the measurement or finding. The value in QSTEST cannot be longer than 40 characters. See QS Terminology Spreadsheet for specific text for QSTEST. Example: Fist, BPR01 - Emotional Withdrawal Req
QSCAT Category of Question Char Grouping Qualifier Used to define a category of related records that will be meaningful to the Reviewer. See QS Terminology Spreadsheet for specific text for QSCAT. Examples: ADAS-COG, MDS-UPDRS. Req
QSSCAT Subcategory for Question Char Grouping Qualifier A further categorization of the questions within the category. Examples: MENTAL HEALTH DOMAIN, DEPRESSION DOMAIN, WORD RECALL. Perm
QSORRES Finding in Original Units Char Result Qualifier Finding as originally received or collected (e.g. RARELY, SOMETIMES). When sponsors apply codelist to indicate the code values are statistically meaningful standardized scores, which are defined by sponsors or by valid methodologies such as SF36 questionnaires, QSORRES will contain the decode format, and QSSTRESC and QSSTRESN may contain the standardized code values or scores. Exp
QSORRESU Original Units Char Variable Qualifier Original units in which the data were collected. The unit for QSORRES, such as minutes or seconds or the units associated with a visual analog scale. Perm
QSSTRESC Character Result/Finding in Standard Format Char Result Qualifier Contains the finding for all questions or sub-scores, copied or derived from QSORRES in a standard format or standard units. QSSTRESC should store all findings in character format; if findings are numeric, they should also be stored in numeric format in QSSTRESN. If question scores are derived from the original finding, then the standard format is the score. Examples: 0, 1. When sponsors applycodelist to indicate the code values are statistically meaningful standardized scores, which are defined by sponsors or by valid methodologies such as SF36 questionnaires, QSORRES will contain the decode format, and QSSTRESC and QSSTRESN may contain the standardized code values or scores. Exp
QSSTRESN Numeric Finding in Standard Units Num Result Qualifier Used for continuous or numeric findings in standard format; copied in numeric format from QSSTRESC. QSSTRESN should store all numeric results or findings. Perm
QSSTRESU Standard Units Char Variable Qualifier Standardized unit used for QSSTRESC or QSSTRESN. Perm
QSSTAT Completion Status Char Record Qualifier Used to indicate a questionnaire or response to a questionnaire was not done. Should be null if a result exists in QSORRES. Perm
QSREASND Reason Not Performed Char Record Qualifier Describes why a question was not answered. Used in conjunction with QSSTAT when value is NOT DONE. Example: SUBJECT REFUSED. Perm
QSBLFL Baseline Flag Char Record Qualifier Indicator used to identify a baseline value. The value should be “Y” or null. Exp
QSDRVFL Derived Flag Char Record Qualifier Used to indicate a derived record. The value should be Y or null. Records that represent the average of other records or questionnaire sub-scores that do not come from the CRF are examples of records that would be derived for the submission datasets. If QSDRVFL=Y, then QSORRES may be null with QSSTRESC and (if numeric) QSSTRESN having the derived value. Perm
QSEVAL Evaluator Char Record Qualifier Role of the person who provided the evaluation. Examples: STUDY SUBJECT, CAREGIVER, INVESTIGATOR. Perm
VISITNUM Visit Number Num Timing 1. Clinical encounter number. 2. Numeric version of VISIT, used for sorting. Exp
VISIT Visit Name Char Timing 1. Protocol-defined description of clinical encounter. 2. May be used in addition to VISITNUM and/or VISITDY. Perm
VISITDY Planned Study Day of Visit Num Timing Planned study day of the visit based upon RFSTDTC in Demographics. Perm
QSDTC Date/Time of Finding Char Timing Date of questionnaire. Exp
QSDY Study Day of Finding Num Timing 1. Study day of finding collection, measured as integer days. 2. Algorithm for calculations must be relative to the sponsor-defined RFSTDTC variable in Demographics. Perm
QSTPT Planned Time Point Name Char Timing 1. Text Description of time when questionnaire should be administered. 2. This may be represented as an elapsed time relative to a fixed reference point, such as time of last dose. See QSTPTNUM and QSTPTREF. Perm
QSTPTNUM Planned Time Point Number Num Timing Numerical version of QSTPT to aid in sorting. Perm
QSELTM Planned Elapsed Time from Time Point Ref Char Timing Planned Elapsed time (in ISO 8601) relative to a planned fixed reference (QSTPTREF). This variable is useful where there are repetitive measures. Not a clock time or a date time variable. Represented as an ISO 8601 duration. Examples: “-PT15M” to represent the period of 15 minutes prior to the reference point indicated by QSTPTREF, or “PT8H” to represent the period of 8 hours after the reference point indicated by QSTPTREF. Perm
QSTPTREF Time Point Reference Char Timing Name of the fixed reference point referred to by QSELTM, QSTPTNUM, and QSTPT. Examples: PREVIOUS DOSE, PREVIOUS MEAL. Perm
QSRFTDTC Date/Time of Reference Time Point Char Timing Date/time of the reference time point, LBTPTREF. Perm
QSEVLINT Evaluation Interval Char Timing Evaluation Interval associated with a QSTEST question represented in ISO 8601 character format. Example: "-P2Y" to represent an interval of 2 years in the question "Have you experienced any episodes in the past 2 years?" Perm