| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 36 |
3.2%
|
| 2 | Mild | 53 |
4.7%
|
| 3 | Moderate | 166 |
14.8%
|
| 4 | Severe | 409 |
36.4%
|
| 5 | Extreme | 461 |
41%
|
| Sysmiss | 3292 |