| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 20 |
2.1%
|
| 2 | Mild | 13 |
1.4%
|
| 3 | Moderate | 94 |
10%
|
| 4 | Severe | 474 |
50.5%
|
| 5 | Extreme | 337 |
35.9%
|
| Sysmiss | 3000 |