| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1774 |
78.7%
|
| 2 | I did not smoke during the past 12 months | 226 |
10%
|
| 3 | Yes | 130 |
5.8%
|
| 4 | No | 125 |
5.5%
|
| Sysmiss | 13 |