| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 801 |
74.2%
|
| 2 | I already stopped smoking | 193 |
17.9%
|
| 3 | Yes | 51 |
4.7%
|
| 4 | No | 34 |
3.2%
|
| Sysmiss | 12 |