| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2009 |
88.4%
|
| 2 | I did not smoke during the past 12 months | 152 |
6.7%
|
| 3 | Yes | 48 |
2.1%
|
| 4 | No | 64 |
2.8%
|
| Sysmiss | 23 |