| Value | Category | Cases | |
|---|---|---|---|
| 1 | Caretaker/guardian of participant | 28 |
1.4%
|
| 2 | Study staff | 1978 |
98.6%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 0 | |
| Sysmiss | 1 |