| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 3419 |
64.3%
|
| 2 | mild | 838 |
15.8%
|
| 3 | moderate | 860 |
16.2%
|
| 4 | severe | 140 |
2.6%
|
| 5 | extreme/cannot do | 48 |
0.9%
|
| 9 | n/a | 11 |
0.2%
|
| Sysmiss | 756 |