| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3124 |
69.3%
|
| 2 | I did not smoke during the past 12 months | 683 |
15.2%
|
| 3 | Yes | 527 |
11.7%
|
| 4 | No | 174 |
3.9%
|
| Sysmiss | 96 |