| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3581 |
78.2%
|
| 2 | I did not smoke during the past 12 months | 477 |
10.4%
|
| 3 | Yes | 325 |
7.1%
|
| 4 | No | 194 |
4.2%
|
| Sysmiss | 41 |