| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 12 |
1.2%
|
| 2 | Mild | 74 |
7.5%
|
| 3 | Moderate | 255 |
25.8%
|
| 4 | Severe | 561 |
56.7%
|
| 5 | Extreme | 87 |
8.8%
|
| Sysmiss | 2949 |