| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1540 |
72.7%
|
| 2 | I did not smoke during the past 12 months | 182 |
8.6%
|
| 3 | Yes | 210 |
9.9%
|
| 4 | No | 187 |
8.8%
|
| Sysmiss | 1 |