| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 2176 |
95.8%
|
| 2 | SOME DIFFICULTY | 65 |
2.9%
|
| 3 | A LOT OF DIFFICULTY | 3 |
0.1%
|
| 4 | CANNOT WALK 100 M AT ALL | 5 |
0.2%
|
| 9 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 22 |
1%
|