| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1009 |
57.1%
|
| 2 | I did not smoke during the past 12 months | 347 |
19.6%
|
| 3 | Yes | 296 |
16.8%
|
| 4 | No | 115 |
6.5%
|
| Sysmiss | 22 |