| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 3177 |
53.5%
|
| 2 | mild | 1714 |
28.9%
|
| 3 | moderate | 921 |
15.5%
|
| 4 | severe | 103 |
1.7%
|
| 5 | extreme/cannot do | 23 |
0.4%
|
| Sysmiss | 381 |