| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2186 |
91.8%
|
| 2 | Did not smoke cigarettes | 60 |
2.5%
|
| 3 | Yes | 105 |
4.4%
|
| 4 | No | 29 |
1.2%
|
| Sysmiss | 156 |