| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 2475 |
41.7%
|
| 2 | mild | 2216 |
37.3%
|
| 3 | moderate | 1104 |
18.6%
|
| 4 | severe | 123 |
2.1%
|
| 5 | extreme/cannot do | 20 |
0.3%
|
| Sysmiss | 381 |