| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4678 |
82.8%
|
| 2 | I did not smoke during the past 12 months | 459 |
8.1%
|
| 3 | Yes | 284 |
5%
|
| 4 | No | 231 |
4.1%
|
| Sysmiss | 12 |