| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 5337 |
62.7%
|
| 2 | SOME DIFFICULTY | 803 |
9.4%
|
| 3 | A LOT OF DIFFICULTY | 306 |
3.6%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 5 |
0.1%
|
| 9 | NO RESPONSE | 10 |
0.1%
|
| Sysmiss | 2050 |
24.1%
|