| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4896 |
86.3%
|
| 2 | I did not smoke during the past 12 months | 351 |
6.2%
|
| 3 | Yes | 269 |
4.7%
|
| 4 | No | 157 |
2.8%
|
| Sysmiss | 25 |