| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 28 |
1.3%
|
| 2 | Mild | 44 |
2%
|
| 3 | Moderate | 156 |
7.2%
|
| 4 | Severe | 548 |
25.3%
|
| 5 | Extreme | 1388 |
64.1%
|
| Sysmiss | 2253 |