| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3547 |
86.9%
|
| 2 | I did not smoke during the past year | 156 |
3.8%
|
| 3 | Yes | 213 |
5.2%
|
| 4 | No | 166 |
4.1%
|
| Sysmiss | 28 |