| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have no problems in walking about | 603 |
76.8%
|
| 2 | I have some problems in walking around | 181 |
23.1%
|
| 3 | I am confined to bed | 1 |
0.1%
|
| Sysmiss | 1881 |