| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1917 |
73.1%
|
| 2 | Did not smoke cigarettes | 351 |
13.4%
|
| 3 | Yes | 166 |
6.3%
|
| 4 | No | 189 |
7.2%
|
| Sysmiss | 56 |