| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 11 |
0.6%
|
| 2 | Mild | 122 |
6.2%
|
| 3 | Moderate | 427 |
21.8%
|
| 4 | Severe | 1033 |
52.8%
|
| 5 | Extreme | 363 |
18.6%
|
| Sysmiss | 1982 |