| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1413 |
65.1%
|
| 2 | I did not smoke during the past 12 months | 438 |
20.2%
|
| 3 | Yes | 259 |
11.9%
|
| 4 | No | 60 |
2.8%
|
| Sysmiss | 4 |