| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3265 |
92.2%
|
| 2 | I did not smoke during the past 12 months | 152 |
4.3%
|
| 3 | Yes | 96 |
2.7%
|
| 4 | No | 29 |
0.8%
|
| Sysmiss | 11 |