| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 4422 |
83.1%
|
| 2 | mild | 450 |
8.5%
|
| 3 | moderate | 281 |
5.3%
|
| 4 | severe | 134 |
2.5%
|
| 5 | extreme/cannot do | 32 |
0.6%
|
| Sysmiss | 753 |