| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1982 |
90.2%
|
| 2 | I did not smoke during the past 12 months | 114 |
5.2%
|
| 3 | Yes | 53 |
2.4%
|
| 4 | No | 48 |
2.2%
|
| Sysmiss | 11 |