| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 863 |
49.7%
|
| 2 | Did not smoke cigarettes | 283 |
16.3%
|
| 3 | Yes | 371 |
21.4%
|
| 4 | No | 218 |
12.6%
|
| Sysmiss | 281 |