| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 2115 |
35.6%
|
| 2 | mild | 2475 |
41.7%
|
| 3 | moderate | 1215 |
20.5%
|
| 4 | severe | 130 |
2.2%
|
| 5 | extreme/cannot do | 3 |
0.1%
|
| Sysmiss | 381 |