| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2701 |
73.6%
|
| 2 | I did not smoke during the past 12 months | 353 |
9.6%
|
| 3 | Yes | 463 |
12.6%
|
| 4 | No | 151 |
4.1%
|
| Sysmiss | 29 |