| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1963 |
90.7%
|
| 2 | Did not smoke cigarettes | 55 |
2.5%
|
| 3 | Yes | 127 |
5.9%
|
| 4 | No | 19 |
0.9%
|
| Sysmiss | 54 |