| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 32 |
1.6%
|
| 2 | Mild | 51 |
2.6%
|
| 3 | Moderate | 184 |
9.4%
|
| 4 | Severe | 479 |
24.5%
|
| 5 | Extreme | 1212 |
61.9%
|
| Sysmiss | 1980 |