| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 204 |
10.4%
|
| 2 | Mild | 374 |
19.1%
|
| 3 | Moderate | 649 |
33.1%
|
| 4 | Severe | 643 |
32.8%
|
| 5 | Extreme | 92 |
4.7%
|
| Sysmiss | 1976 |