| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 5875 |
93.4%
|
| 2 | Did not smoke cigarettes | 152 |
2.4%
|
| 3 | Yes | 218 |
3.5%
|
| 4 | No | 42 |
0.7%
|
| Sysmiss | 242 |