| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3440 |
96.3%
|
| 2 | Did not smoke cigarettes | 49 |
1.4%
|
| 3 | Yes | 62 |
1.7%
|
| 4 | No | 22 |
0.6%
|
| Sysmiss | 233 |