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
SPDEVID Sponsor Device Identifier Char Identifier Sponsor-defined identifier for a device. Perm
EGSEQ Sequence Number Num Identifier Sequence number given to ensure uniqueness of subject records within a domain. May be any valid number. Req
EGGRPID Group ID Char Identifier Used to tie together a block of related records in a single domain for a subject. Perm
EGREFID ECG Reference ID Char Identifier Internal or external ECG identifier. Example: "UUID". Perm
EGSPID Sponsor-Defined Identifier Char Identifier Sponsor-defined reference number. Perhaps preprinted on the CRF as an explicit line identifier or defined in the sponsor's operational database. Example: Line number from the ECG page. Perm
EGTESTCD ECG Test or Examination Short Name Char Topic Short name of the measurement, test, or examination described in EGTEST. It can be used as a column name when converting a dataset from a vertical to a horizontal format. The value in EGTESTCD cannot be longer than 8 characters, nor can it start with a number (e.g., "1TEST" is not valid). EGTESTCD cannot contain characters other than letters, numbers, or underscores. Examples : "PRAG", "QRSAG". Test codes are in two separate codelists, one for tests based on regular 10-second ECGs (EGTESTCD) and one for tests based on Holter monitoring (HETESTCD). Req
EGTEST ECG Test or Examination Name Char Synonym Qualifier Verbatim name of the test or examination used to obtain the measurement or finding. The value in EGTEST cannot be longer than 40 characters. Examples: "PR Interval, Aggregate", "QRS Duration, Aggregate". Test names are in two separate codelists, one for tests based on regular 10-second ECGs (EGTEST) and one for tests based on Holter monitoring (HETEST). Req
EGCAT Category for ECG Char Grouping Qualifier Used to categorize ECG observations across subjects. Examples: "MEASUREMENT", "FINDING", "INTERVAL". Perm
EGSCAT Subcategory for ECG Char Grouping Qualifier A further categorization of the ECG. Perm
EGPOS ECG Position of Subject Char Record Qualifier Position of the subject during a measurement or examination. Examples: "SUPINE", "STANDING", "SITTING". Perm
EGBEATNO ECG Beat Number Num Variable Qualifier A sequence number that identifies the beat within an ECG. Perm
EGORRES Result or Finding in Original Units Char Result Qualifier Result of the ECG measurement or finding as originally received or collected. Examples of expected values are "62" or "0.151" when the result is an interval or measurement, or "ATRIAL FIBRILLATION" or "QT PROLONGATION" when the result is a finding. Exp
EGORRESU Original Units Char Variable Qualifier Original units in which the data were collected. The unit for EGORRES. Examples: "sec" or "msec". Perm
EGSTRESC Character Result/Finding in Std Format Char Result Qualifier Contains the result value for all findings, copied or derived from EGORRES in a standard format or standard units. EGSTRESC should store all results or findings in character format; if results are numeric, they should also be stored in numeric format in EGSTRESN. For example, if a test has results of "NONE", "NEG", and "NEGATIVE" in EGORRES and these results effectively have the same meaning, they could be represented in standard format in EGSTRESC as "NEGATIVE". For other examples, see general assumptions. Additional examples of result data: "SINUS BRADYCARDIA", "ATRIAL FLUTTER", "ATRIAL FIBRILLATION". Test results are in two separate codelists, one for tests based on regular 10-second ECGs (EGSTRESC) and one for tests based on Holter monitoring (HESTRESC). Exp
EGSTRESN Numeric Result/Finding in Standard Units Num Result Qualifier Used for continuous or numeric results or findings in standard format; copied in numeric format from EGSTRESC. EGSTRESN should store all numeric test results or findings. Perm
EGSTRESU Standard Units Char Variable Qualifier Standardized units used for EGSTRESC and EGSTRESN. Perm
EGSTAT Completion Status Char Record Qualifier Used to indicate an ECG was not done, or an ECG measurement was not taken. Should be null if a result exists in EGORRES. Perm
EGREASND Reason ECG Not Done Char Record Qualifier Describes why a measurement or test was not performed. Examples: "BROKEN EQUIPMENT" or "SUBJECT REFUSED". Used in conjunction with EGSTAT when value is "NOT DONE". Perm
EGXFN ECG External File Path Char Record Qualifier File name and path for the external ECG waveform file. Perm
EGNAM Vendor Name Char Record Qualifier Name or identifier of the laboratory or vendor who provided the test results. Perm
EGMETHOD Method of Test or Examination Char Record Qualifier Method of the ECG test. Example: "12 LEAD STANDARD". Perm
EGLEAD Lead Location Used for Measurement Char Record Qualifier The lead used for the measurement. Examples: "LEAD 1", "LEAD 2", "LEAD 3", "LEAD rV2", "LEAD V1". Perm
EGLOBXFL Last Observation Char Record Qualifier Operationally-derived indicator used to identify the last non-missing value prior to Exp
  Before Exposure Flag     RFXSTDTC. The value should be "Y" or null.  
EGBLFL Baseline Flag Char Record Qualifier Indicator used to identify a baseline value. Should be "Y" or null. Note that EGBLFL is retained for backward compatibility. The authoritative baseline for statistical analysis is in an ADaM dataset. Perm
EGDRVFL 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 that do not come from the CRF, or are not as originally collected or received are examples of records that would be derived for the submission datasets. If EGDRVFL = "Y", then EGORRES could be null, with EGSTRESC and EGSTRESN (if the result is numeric) having the derived value. Perm
EGEVAL 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). Should be null for records that contain collected or derived data. Examples: "INVESTIGATOR", "ADJUDICATION COMMITTEE", "VENDOR". Perm
EGEVALID Evaluator Identifier Char Variable Qualifier Used to distinguish multiple evaluators with the same role recorded in EGEVAL. Examples: "RADIOLOGIST 1" or "RADIOLOGIST 2". Perm
EGREPNUM 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. Perm
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 clinical encounter. 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
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. Perm
EPOCH Epoch Char Timing Epoch associated with the date/time at which the assessment was made. Perm
EGDTC Date/Time of ECG Char Timing Date/Time of ECG. Exp
EGDY Study Day of ECG Num Timing Study day of the ECG, measured as integer days. Algorithm for calculations must be relative to the sponsor-defined RFSTDTC variable in Demographics. Perm
EGTPT Planned Time Point Name Char Timing Text description of time when measurement should be taken. This may be represented as an elapsed time relative to a fixed reference point, such as time of last dose. See EGTPTNUM and EGTPTREF. Examples: "Start", "5 min post". Perm
EGTPTNUM Planned Time Point Number Num Timing Numerical version of EGTPT to aid in sorting. Perm
EGELTM Planned Elapsed Time from Time Point Ref Char Timing Planned elapsed time (in ISO 8601) relative to a fixed time point reference (EGTPTREF). 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 EGTPTREF, or "PT8H" to represent the period of 8 hours after the reference point indicated by EGTPTREF. Perm
EGTPTREF Time Point Reference Char Timing Name of the fixed reference point referred to by EGELTM, EGTPTNUM, and EGTPT. Examples: "PREVIOUS DOSE", "PREVIOUS MEAL". Perm
EGRFTDTC Date/Time of Reference Time Point Char Timing Date/time for a fixed reference time point defined by EGTPTREF. Perm