| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 998 |
71.3%
|
| 2 | I did not smoke during the past 12 months | 223 |
15.9%
|
| 3 | Yes | 107 |
7.6%
|
| 4 | No | 72 |
5.1%
|
| Sysmiss | 8 |