| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 2103 |
39.5%
|
| 2 | mild | 1568 |
29.5%
|
| 3 | moderate | 1400 |
26.3%
|
| 4 | severe | 229 |
4.3%
|
| 5 | extreme/cannot do | 19 |
0.4%
|
| Sysmiss | 753 |