| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1024 |
78.5%
|
| 2 | I did not smoke during the past 12 months | 177 |
13.6%
|
| 3 | Yes | 62 |
4.8%
|
| 4 | No | 42 |
3.2%
|
| Sysmiss | 4 |