| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4062 |
83.6%
|
| 2 | I did not smoke during the past 12 months | 350 |
7.2%
|
| 3 | Yes | 237 |
4.9%
|
| 4 | No | 210 |
4.3%
|
| Sysmiss | 43 |