| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 4024 |
67.8%
|
| 2 | mild | 1229 |
20.7%
|
| 3 | moderate | 631 |
10.6%
|
| 4 | severe | 48 |
0.8%
|
| 5 | extreme/cannot do | 6 |
0.1%
|
| Sysmiss | 381 |