| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 6424 |
74.4%
|
| 2 | I did not smoke during the past 12 months | 547 |
6.3%
|
| 3 | Yes | 450 |
5.2%
|
| 4 | No | 1214 |
14.1%
|
| Sysmiss | 88 |