| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 496 |
77.7%
|
| 2 | I did not smoke during the past 12 months | 32 |
5%
|
| 3 | Yes | 66 |
10.3%
|
| 4 | No | 44 |
6.9%
|
| Sysmiss | 4 |