| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 52382 |
76.2%
|
| 2 | SOME DIFFICULTY | 4719 |
6.9%
|
| 3 | A LOT OF DIFFICULTY | 549 |
0.8%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 28 |
0%
|
| 9 | NO RESPONSE | 21 |
0%
|
| Sysmiss | 11010 |
16%
|