| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 939 |
68.2%
|
| 2 | I have quit smoking | 259 |
18.8%
|
| 3 | Yes | 163 |
11.8%
|
| 4 | No | 16 |
1.2%
|
| Sysmiss | 1 |