| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 52 |
5.3%
|
| 2 | Mild | 320 |
32.5%
|
| 3 | Moderate | 443 |
45%
|
| 4 | Severe | 136 |
13.8%
|
| 5 | Extreme | 33 |
3.4%
|
| Sysmiss | 2954 |