| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 22 |
2%
|
| 2 | Mild | 36 |
3.3%
|
| 3 | Moderate | 166 |
15%
|
| 4 | Severe | 609 |
55%
|
| 5 | Extreme | 274 |
24.8%
|
| Sysmiss | 3310 |