| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 857 |
77.5%
|
| 2 | Mild | 124 |
11.2%
|
| 3 | Moderate | 78 |
7.1%
|
| 4 | Severe | 35 |
3.2%
|
| 5 | Extreme | 12 |
1.1%
|
| Sysmiss | 3311 |