| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 17 |
1.5%
|
| 2 | Mild | 78 |
6.9%
|
| 3 | Moderate | 376 |
33.4%
|
| 4 | Severe | 555 |
49.3%
|
| 5 | Extreme | 99 |
8.8%
|
| Sysmiss | 3292 |