| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 626 |
67.7%
|
| 2 | I did not smoke in the past years | 176 |
19%
|
| 3 | Yes | 94 |
10.2%
|
| 4 | No | 29 |
3.1%
|
| Sysmiss | 6 |