| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 3245 |
54.6%
|
| 2 | mild | 1801 |
30.3%
|
| 3 | moderate | 708 |
11.9%
|
| 4 | severe | 160 |
2.7%
|
| 5 | extreme/cannot do | 26 |
0.4%
|
| Sysmiss | 545 |