| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 336 |
86.6%
|
| 2 | mild | 29 |
7.5%
|
| 3 | moderate | 15 |
3.9%
|
| 4 | severe | 4 |
1%
|
| 5 | extreme | 4 |
1%
|
| Sysmiss | 4277 |