| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 31 |
2.8%
|
| 2 | Mild | 184 |
16.7%
|
| 3 | Moderate | 469 |
42.5%
|
| 4 | Severe | 328 |
29.7%
|
| 5 | Extreme | 92 |
8.3%
|
| Sysmiss | 3313 |