| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2830 |
78%
|
| 2 | I did not smoke during the past 12 months | 403 |
11.1%
|
| 3 | Yes | 298 |
8.2%
|
| 4 | No | 96 |
2.6%
|
| Sysmiss | 6 |