| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2437 |
77.7%
|
| 2 | I did not smoke during the past 12 months | 367 |
11.7%
|
| 3 | Yes | 215 |
6.9%
|
| 4 | No | 119 |
3.8%
|
| Sysmiss | 14 |