| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3051 |
71.2%
|
| 2 | I did not smoke during the past 12 months | 549 |
12.8%
|
| 3 | Yes | 489 |
11.4%
|
| 4 | No | 197 |
4.6%
|
| Sysmiss | 15 |