| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2824 |
90.9%
|
| 2 | I did not smoke during the past year | 158 |
5.1%
|
| 3 | Yes | 60 |
1.9%
|
| 4 | No | 66 |
2.1%
|
| Sysmiss | 2 |