| Value | Category | Cases | |
|---|---|---|---|
| 1 | Asked for the test | 146 |
43.1%
|
| 2 | Offered and accepted | 33 |
9.7%
|
| 3 | Required | 160 |
47.2%
|
| 9 | Missing | 3 | |
| Sysmiss | 2230 |