| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 319 |
82.2%
|
| 2 | mild | 37 |
9.5%
|
| 3 | moderate | 25 |
6.4%
|
| 4 | severe | 4 |
1%
|
| 5 | extreme | 3 |
0.8%
|
| Sysmiss | 4277 |