| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1531 |
79.3%
|
| 2 | I did not smoke during the past 12 months | 173 |
9%
|
| 3 | Yes | 113 |
5.9%
|
| 4 | No | 114 |
5.9%
|
| Sysmiss | 19 |