| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1287 |
56.2%
|
| 2 | I did not smoke during the past 12 months | 460 |
20.1%
|
| 3 | Yes | 391 |
17.1%
|
| 4 | No | 151 |
6.6%
|
| Sysmiss | 12 |