| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2460 |
91.9%
|
| 2 | Did not smoke cigarettes | 36 |
1.3%
|
| 3 | Yes | 116 |
4.3%
|
| 4 | No | 65 |
2.4%
|
| Sysmiss | 312 |