| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2578 |
90.6%
|
| 2 | I did not smoke during the past year | 157 |
5.5%
|
| 3 | Yes | 79 |
2.8%
|
| 4 | No | 33 |
1.2%
|
| Sysmiss | 16 |