| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4852 |
66.8%
|
| 2 | Did not smoke cigarettes | 456 |
6.3%
|
| 3 | Yes | 1624 |
22.4%
|
| 4 | No | 332 |
4.6%
|
| Sysmiss | 312 |