| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1440 |
80.8%
|
| 2 | I did not smoke during the past year | 193 |
10.8%
|
| 3 | Yes | 79 |
4.4%
|
| 4 | No | 71 |
4%
|
| Sysmiss | 12 |