| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 3504 |
59%
|
| 2 | mild | 1719 |
28.9%
|
| 3 | moderate | 556 |
9.4%
|
| 4 | severe | 139 |
2.3%
|
| 5 | extreme/cannot do | 22 |
0.4%
|
| Sysmiss | 545 |