| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 3685 |
83.9%
|
| 2 | SOME DIFFICULTY | 586 |
13.3%
|
| 3 | A LOT OF DIFFICULTY | 119 |
2.7%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 3 |
0.1%
|
| 9 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 13609 |