| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 2222 |
50.1%
|
| 2 | SOME DIFFICULTY | 182 |
4.1%
|
| 3 | A LOT OF DIFFICULTY | 66 |
1.5%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 4 |
0.1%
|
| 9 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 1962 |
44.2%
|