| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2513 |
63.4%
|
| 2 | I did not smoke during the past 12 months | 684 |
17.3%
|
| 3 | Yes | 498 |
12.6%
|
| 4 | No | 270 |
6.8%
|
| Sysmiss | 32 |