| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 20 |
0.9%
|
| 2 | Mild | 36 |
1.6%
|
| 3 | Moderate | 128 |
5.7%
|
| 4 | Severe | 677 |
30.3%
|
| 5 | Extreme | 1370 |
61.4%
|
| Sysmiss | 2186 |