| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1892 |
88.8%
|
| 2 | I did not smoke during the past year | 116 |
5.4%
|
| 3 | Yes | 87 |
4.1%
|
| 4 | No | 36 |
1.7%
|
| Sysmiss | 28 |