| Value | Category | Cases | |
|---|---|---|---|
| 2 | Some difficulty | 318 |
71.3%
|
| 3 | A lot of difficulty | 39 |
8.7%
|
| 4 | Cannot walk 100 m at all | 78 |
17.5%
|
| 9 | No response | 11 |
2.5%
|
| Sysmiss | 36606 |