| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 4513 |
84.8%
|
| 2 | mild | 376 |
7.1%
|
| 3 | moderate | 387 |
7.3%
|
| 4 | severe | 37 |
0.7%
|
| 5 | extreme/cannot do | 7 |
0.1%
|
| Sysmiss | 752 |