| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 742 |
74.9%
|
| 2 | Mild | 130 |
13.1%
|
| 3 | Moderate | 57 |
5.8%
|
| 4 | Severe | 53 |
5.4%
|
| 5 | Extreme | 8 |
0.8%
|
| Sysmiss | 2948 |