| Value | Category | Cases | |
|---|---|---|---|
| 2 | Some difficulty | 52 |
83.9%
|
| 3 | A lot of difficulty | 1 |
1.6%
|
| 4 | Cannot walk 100 m at all | 6 |
9.7%
|
| 9 | No response | 3 |
4.8%
|
| Sysmiss | 4267 |