| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4337 |
84.8%
|
| 2 | I did not smoke during the past 12 months | 313 |
6.1%
|
| 3 | Yes | 276 |
5.4%
|
| 4 | No | 187 |
3.7%
|
| Sysmiss | 28 |