| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 3592 |
60.5%
|
| 2 | mild | 1575 |
26.5%
|
| 3 | moderate | 602 |
10.1%
|
| 4 | severe | 139 |
2.3%
|
| 5 | extreme/cannot do | 32 |
0.5%
|
| Sysmiss | 545 |