| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 5239 |
83.7%
|
| 2 | I did not smoke during the past 12 months | 494 |
7.9%
|
| 3 | Yes | 199 |
3.2%
|
| 4 | No | 326 |
5.2%
|
| Sysmiss | 138 |