| Value | Category | Cases | |
|---|---|---|---|
| 1 | POSITIVE | 20 |
80%
|
| 2 | NEGATIVE | 3 |
12%
|
| 3 | NOT VALID | 0 |
0%
|
| 4 | DON'T KNOW | 2 |
8%
|
| Sysmiss | 5771 |