| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1706 |
93.5%
|
| 2 | SOME DIFFICULTY | 15 |
0.8%
|
| 3 | A LOT OF DIFFICULTY | 3 |
0.2%
|
| 4 | CANNOT WALK 100 M AT ALL | 1 |
0.1%
|
| 9 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 98 |
5.4%
|