| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1080 |
64.4%
|
| 2 | I did not smoke during the past 12 months | 160 |
9.5%
|
| 3 | Yes | 270 |
16.1%
|
| 4 | No | 166 |
9.9%
|
| Sysmiss | 4 |