| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1048 |
71.7%
|
| 2 | I have quit smoking | 246 |
16.8%
|
| 3 | Yes | 136 |
9.3%
|
| 4 | No | 31 |
2.1%
|
| Sysmiss | 20 |