| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2354 |
59.9%
|
| 2 | Mild | 781 |
19.9%
|
| 3 | Moderate | 534 |
13.6%
|
| 4 | Severe | 227 |
5.8%
|
| 5 | Extreme | 31 |
0.8%
|
| Sysmiss | 11 |