| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 46 |
2.4%
|
| 2 | Mild | 121 |
6.2%
|
| 3 | Moderate | 246 |
12.6%
|
| 4 | Severe | 601 |
30.7%
|
| 5 | Extreme | 942 |
48.2%
|
| Sysmiss | 1982 |