| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 750 |
38.3%
|
| 2 | Mild | 300 |
15.3%
|
| 3 | Moderate | 274 |
14%
|
| 4 | Severe | 474 |
24.2%
|
| 5 | Extreme | 160 |
8.2%
|
| Sysmiss | 1980 |