| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3364 |
79.7%
|
| 2 | I did not smoke during the past 12 months | 384 |
9.1%
|
| 3 | Yes | 312 |
7.4%
|
| 4 | No | 162 |
3.8%
|
| Sysmiss | 37 |