| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 4139 |
77.8%
|
| 2 | mild | 578 |
10.9%
|
| 3 | moderate | 489 |
9.2%
|
| 4 | severe | 97 |
1.8%
|
| 5 | extreme/cannot do | 16 |
0.3%
|
| Sysmiss | 753 |