| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 6 |
0.6%
|
| 2 | Mild | 12 |
1.2%
|
| 3 | Moderate | 78 |
7.8%
|
| 4 | Severe | 454 |
45.4%
|
| 5 | Extreme | 451 |
45.1%
|
| Sysmiss | 2937 |