| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 133 |
6.8%
|
| 2 | Mild | 426 |
21.8%
|
| 3 | Moderate | 712 |
36.5%
|
| 4 | Severe | 590 |
30.2%
|
| 5 | Extreme | 92 |
4.7%
|
| Sysmiss | 1985 |