| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1657 |
71.4%
|
| 2 | I did not smoke during the past 12 months | 146 |
6.3%
|
| 3 | Yes | 262 |
11.3%
|
| 4 | No | 257 |
11.1%
|
| Sysmiss | 12 |