| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 311 |
80.2%
|
| 2 | mild | 42 |
10.8%
|
| 3 | moderate | 24 |
6.2%
|
| 4 | severe | 7 |
1.8%
|
| 5 | extreme | 4 |
1%
|
| Sysmiss | 4277 |