| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1022 |
63.4%
|
| 2 | Did not smoke cigarettes | 221 |
13.7%
|
| 3 | Yes | 235 |
14.6%
|
| 4 | No | 133 |
8.3%
|
| Sysmiss | 248 |