| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 908 |
66.4%
|
| 2 | Did not smoke cigarettes | 153 |
11.2%
|
| 3 | Yes | 170 |
12.4%
|
| 4 | No | 136 |
9.9%
|
| Sysmiss | 239 |