| Value | Category | Cases | |
|---|---|---|---|
| -9 | (-9) Refused | 2 |
0.3%
|
| -8 | (-8) Don't know | 515 |
68.9%
|
| 1 | (1) Positive (including positive, tested together) | 26 |
3.5%
|
| 3 | (3) Negative (including negative, tested together) | 204 |
27.3%
|
| Sysmiss | 21515 |