| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 4 |
0.4%
|
| 2 | Mild | 12 |
1.1%
|
| 3 | Moderate | 75 |
7.1%
|
| 4 | Severe | 357 |
33.6%
|
| 5 | Extreme | 614 |
57.8%
|
| Sysmiss | 3355 |