| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1959 |
88.9%
|
| 2 | I did not smoke during the past 12 months | 115 |
5.2%
|
| 3 | Yes | 68 |
3.1%
|
| 4 | No | 61 |
2.8%
|
| Sysmiss | 17 |