| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 17 |
1.7%
|
| 2 | Mild | 62 |
6.2%
|
| 3 | Moderate | 323 |
32.2%
|
| 4 | Severe | 477 |
47.6%
|
| 5 | Extreme | 124 |
12.4%
|
| Sysmiss | 2935 |