| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1071 |
76.9%
|
| 2 | I did not smoke during the past 12 months | 206 |
14.8%
|
| 3 | Yes | 68 |
4.9%
|
| 4 | No | 48 |
3.4%
|
| Sysmiss | 11 |