| Value | Category | Cases | |
|---|---|---|---|
| 0 | negative | 1849 |
97.9%
|
| 1 | positive | 33 |
1.7%
|
| 3 | no present | 3 |
0.2%
|
| 4 | refused | 3 |
0.2%
|
| 6 | other | 1 |
0.1%
|
| Sysmiss | 11060 |