| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 4151 |
78.1%
|
| 2 | mild | 434 |
8.2%
|
| 3 | moderate | 573 |
10.8%
|
| 4 | severe | 135 |
2.5%
|
| 5 | extreme/cannot do | 18 |
0.3%
|
| 9 | n/a | 4 |
0.1%
|
| Sysmiss | 757 |