| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1557 |
80.3%
|
| 2 | Did not smoke cigarettes | 220 |
11.3%
|
| 3 | Yes | 95 |
4.9%
|
| 4 | No | 68 |
3.5%
|
| Sysmiss | 155 |