| Value | Category | Cases | |
|---|---|---|---|
| 1 | POSITIVE | 19 |
31.7%
|
| 2 | NEGATIVE | 6 |
10%
|
| 3 | NOT VALID | 4 |
6.7%
|
| 4 | DON'T KNOW | 31 |
51.7%
|
| Sysmiss | 5736 |