| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 297 |
88.4%
|
| 2 | Some difficulty | 26 |
7.7%
|
| 3 | A lot of difficulty | 12 |
3.6%
|
| 4 | Cannot walk 500 m at all | 1 |
0.3%
|
| 9 | No response | 0 |
0%
|
| Sysmiss | 36716 |