| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3396 |
84.6%
|
| 2 | I did not smoke during the past 12 months | 287 |
7.1%
|
| 3 | Yes | 185 |
4.6%
|
| 4 | No | 146 |
3.6%
|
| Sysmiss | 13 |