| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3801 |
87.1%
|
| 2 | I did not smoke during the past year | 283 |
6.5%
|
| 3 | Yes | 203 |
4.6%
|
| 4 | No | 79 |
1.8%
|
| Sysmiss | 165 |