| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 898 |
68.8%
|
| 2 | I have quit smoking | 230 |
17.6%
|
| 3 | Yes | 160 |
12.3%
|
| 4 | No | 17 |
1.3%
|
| Sysmiss | 3 |