| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2787 |
91.3%
|
| 2 | Did not smoke cigarettes | 86 |
2.8%
|
| 3 | Yes | 139 |
4.6%
|
| 4 | No | 41 |
1.3%
|
| Sysmiss | 49 |