| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 24 |
2.2%
|
| 2 | Mild | 26 |
2.4%
|
| 3 | Moderate | 91 |
8.3%
|
| 4 | Severe | 443 |
40.3%
|
| 5 | Extreme | 515 |
46.9%
|
| Sysmiss | 3318 |