| Value | Category | Cases | |
|---|---|---|---|
| 1 | Mild | 304 |
16.6%
|
| 2 | Moderate | 267 |
14.6%
|
| 3 | Severe | 1232 |
67.4%
|
| 8 | Unknown | 24 |
1.3%
|
| 9 | missing | 40 | |
| Sysmiss | 2296 |