| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 5285 |
90.3%
|
| 2 | SOME DIFFICULTY | 301 |
5.1%
|
| 3 | A LOT OF DIFFICULTY | 51 |
0.9%
|
| 4 | CANNOT WALK 500 M AT ALL | 22 |
0.4%
|
| 9 | NO RESPONSE | 4 |
0.1%
|
| Sysmiss | 187 |
3.2%
|