| Value | Category | Cases | |
|---|---|---|---|
| 1 | positive | 1 |
2.5%
|
| 2 | negative | 39 |
97.5%
|
| 3 | not present | 0 |
0%
|
| 4 | refused | 0 |
0%
|
| 5 | other | 0 |
0%
|
| Sysmiss | 12909 |