| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 52 |
94.5%
|
| 2 | Some difficulty | 3 |
5.5%
|
| 3 | A lot of difficulty | 0 |
0%
|
| 4 | Cannot walk 500 m at all | 0 |
0%
|
| 9 | No response | 0 |
0%
|
| Sysmiss | 4274 |