| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 13 |
2.5%
|
| 2 | Yes, sometimes | 8 |
1.5%
|
| 3 | Only when feeling sick | 13 |
2.5%
|
| 4 | No | 355 |
67.7%
|
| 7 | Missing | 135 |
25.8%
|
| Sysmiss | 419 |