| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1081 |
61.4%
|
| 2 | I did not smoke during the past 12 months | 224 |
12.7%
|
| 3 | Yes | 279 |
15.8%
|
| 4 | No | 177 |
10.1%
|
| Sysmiss | 17 |