| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 34 |
1.7%
|
| 2 | Mild | 109 |
5.6%
|
| 3 | Moderate | 380 |
19.4%
|
| 4 | Severe | 1104 |
56.4%
|
| 5 | Extreme | 330 |
16.9%
|
| Sysmiss | 1981 |