| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 8363 |
71.3%
|
| 2 | SOME DIFFICULTY | 1184 |
10.1%
|
| 3 | A LOT OF DIFFICULTY | 320 |
2.7%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 10 |
0.1%
|
| 9 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 1858 |
15.8%
|