| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 12 |
2.5%
|
| 2 | Yes, mild | 477 |
97.5%
|
| 3 | Yes, severe | 0 |
0%
|
| 8 | Unknown | 0 |
0%
|
| Sysmiss | 1092 |