| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 3407 |
64%
|
| 2 | mild | 810 |
15.2%
|
| 3 | moderate | 867 |
16.3%
|
| 4 | severe | 210 |
3.9%
|
| 5 | extreme/cannot do | 27 |
0.5%
|
| Sysmiss | 751 |