| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 3233 |
76.3%
|
| 2 | SOME DIFFICULTY | 517 |
12.2%
|
| 3 | A LOT OF DIFFICULTY | 43 |
1%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 12 |
0.3%
|
| 9 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 429 |
10.1%
|