| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 642 |
78.2%
|
| 2 | Did not smoke cigarettes | 42 |
5.1%
|
| 3 | Yes | 121 |
14.7%
|
| 4 | No | 16 |
1.9%
|
| Sysmiss | 122 |