| # | Variable Name | Variable Label | Type | Format | Role | Variable(s) Qualified | Usage Restrictions | Variable C-code | Definition | Notes | Examples |
|---|
| 1 | STUDYID | Study Identifier | Char |
| Identifier |
|
| C83082 | A sequence of characters used by the sponsor to uniquely identify the study. |
|
|
| 2 | USUBJID | Unique Subject Identifier | Char |
| Identifier |
|
| C69256 | A sequence of characters used to uniquely identify a subject across all studies for all applications or submissions involving the product. |
|
|
| 3 | REFID | Reference ID | Char |
| Identifier |
|
| C82531 | A sequence of characters used to uniquely identify a source of information. |
|
|
| 4 | SPEC | Specimen Type | Char |
| Variable Qualifier | REFID |
| C70713 | The type of sample material taken from a biological entity. |
|
|
| 5 | PARENT | Specimen Parent | Char |
| Identifier |
|
|
|
| Identifies the REFID of the parent of a specimen to support tracking its genealogy. |
|
| 6 | LEVEL | Specimen Level | Num |
| Variable Qualifier | REFID |
|
|
| Identifies the generation number of the sample where the collected sample is considered the first generation. |
|