| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 5193 |
83.6%
|
| 2 | I did not smoke during the past 12 months | 356 |
5.7%
|
| 3 | Yes | 474 |
7.6%
|
| 4 | No | 190 |
3.1%
|
| Sysmiss | 15 |