| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 6451 |
93%
|
| 2 | I did not smoke during the past 12 months | 252 |
3.6%
|
| 3 | Yes | 168 |
2.4%
|
| 4 | No | 67 |
1%
|
| Sysmiss | 45 |