| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 12 |
1.2%
|
| 2 | Mild | 16 |
1.6%
|
| 3 | Moderate | 47 |
4.8%
|
| 4 | Severe | 295 |
29.9%
|
| 5 | Extreme | 616 |
62.5%
|
| Sysmiss | 2952 |