| Value | Category | Cases | |
|---|---|---|---|
| 0 | negative | 399 |
97.1%
|
| 1 | positive | 12 |
2.9%
|
| 3 | no present | 0 |
0%
|
| 4 | refused | 0 |
0%
|
| 6 | other | 0 |
0%
|
| Sysmiss | 12538 |