| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1277 |
71.9%
|
| 2 | I did not smoke during the past 12 months | 305 |
17.2%
|
| 3 | Yes | 141 |
7.9%
|
| 4 | No | 52 |
2.9%
|
| Sysmiss | 6 |