| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 392 |
35.5%
|
| 2 | Mild | 294 |
26.6%
|
| 3 | Moderate | 328 |
29.7%
|
| 4 | Severe | 84 |
7.6%
|
| 5 | Extreme | 6 |
0.5%
|
| Sysmiss | 3313 |