| Value | Category | Cases | |
|---|---|---|---|
| 1 | tested | 556 |
99.5%
|
| 2 | not present | 3 |
0.5%
|
| 3 | refused | 0 |
0%
|
| 6 | other | 0 |
0%
|
| Sysmiss | 12390 |