| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1609 |
66.1%
|
| 2 | Did not smoke cigarettes | 315 |
12.9%
|
| 3 | Yes | 314 |
12.9%
|
| 4 | No | 198 |
8.1%
|
| Sysmiss | 53 |