| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 3590 |
67.6%
|
| 2 | mild | 491 |
9.2%
|
| 3 | moderate | 507 |
9.5%
|
| 4 | severe | 151 |
2.8%
|
| 5 | extreme/cannot do | 88 |
1.7%
|
| 9 | n/a | 487 |
9.2%
|
| Sysmiss | 758 |