| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1402 |
78.4%
|
| 2 | I did not smoke during the past 12 months | 168 |
9.4%
|
| 3 | Yes | 80 |
4.5%
|
| 4 | No | 138 |
7.7%
|
| Sysmiss | 30 |