| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3419 |
82.6%
|
| 2 | I did not smoke during the past 12 months | 419 |
10.1%
|
| 3 | Yes | 218 |
5.3%
|
| 4 | No | 82 |
2%
|
| Sysmiss | 8 |