| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1415 |
70.9%
|
| 2 | I did not smoke during the past 12 months | 250 |
12.5%
|
| 3 | Yes | 146 |
7.3%
|
| 4 | No | 184 |
9.2%
|
| Sysmiss | 52 |