| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 688 |
12.6%
|
| 2 | mild | 376 |
6.9%
|
| 3 | moderate | 209 |
3.8%
|
| 4 | severe | 93 |
1.7%
|
| 5 | extreme /cannot do | 15 |
0.3%
|
| 7 | 1 |
0%
|
|
| 9 | 4086 |
74.7%
|
|
| 97 | 1 |
0%
|
|
| Sysmiss | 1 |