| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 4117 |
69.3%
|
| 2 | mild | 1144 |
19.3%
|
| 3 | moderate | 631 |
10.6%
|
| 4 | severe | 37 |
0.6%
|
| 5 | extreme/cannot do | 9 |
0.2%
|
| Sysmiss | 381 |