| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 6092 |
83.7%
|
| 2 | I did not smoke during the past 12 months | 641 |
8.8%
|
| 3 | Yes | 431 |
5.9%
|
| 4 | No | 118 |
1.6%
|
| Sysmiss | 16 |