| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 2327 |
86.5%
|
| 2 | SOME DIFFICULTY | 33 |
1.2%
|
| 3 | A LOT OF DIFFICULTY | 4 |
0.1%
|
| 4 | CANNOT WALK 100 M AT ALL | 3 |
0.1%
|
| 9 | NO RESPONSE | 5 |
0.2%
|
| Sysmiss | 319 |
11.9%
|