| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3401 |
82.2%
|
| 2 | Did not smoke cigarettes | 300 |
7.3%
|
| 3 | Yes | 314 |
7.6%
|
| 4 | No | 121 |
2.9%
|
| Sysmiss | 395 |