| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 905 |
69.6%
|
| 2 | I did not smoke in the past years | 248 |
19.1%
|
| 3 | Yes | 108 |
8.3%
|
| 4 | No | 39 |
3%
|
| Sysmiss | 8 |