| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 877 |
78.8%
|
| 2 | I have quit smoking | 154 |
13.8%
|
| 3 | Yes | 75 |
6.7%
|
| 4 | No | 7 |
0.6%
|
| Sysmiss | 3 |