| Value | Category | Cases | |
|---|---|---|---|
| -9 | (-9) Refused | 2 |
0.1%
|
| -8 | (-8) Don't know | 1195 |
59.5%
|
| 1 | (1) Positive (including positive, tested together) | 85 |
4.2%
|
| 3 | (3) Negative (including negative, tested together) | 725 |
36.1%
|
| Sysmiss | 20255 |