| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 3 |
50%
|
| 2 | SOME DIFFICULTY | 2 |
33.3%
|
| 3 | A LOT OF DIFFICULTY | 1 |
16.7%
|
| 4 | CANNOT WALK 500 M AT ALL | 0 |
0%
|
| 9 | NO RESPONSE | 0 |
0%
|
| Sysmiss | 9411 |