| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 5740 |
91.5%
|
| 2 | Did not smoke cigarettes | 171 |
2.7%
|
| 3 | Yes | 251 |
4%
|
| 4 | No | 113 |
1.8%
|
| Sysmiss | 470 |