| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2156 |
79.8%
|
| 2 | Did not smoke cigarettes | 278 |
10.3%
|
| 3 | Yes | 201 |
7.4%
|
| 4 | No | 67 |
2.5%
|
| Sysmiss | 134 |