| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3193 |
58.8%
|
| 2 | I did not smoke during the past 12 months | 719 |
13.2%
|
| 3 | Yes | 856 |
15.8%
|
| 4 | No | 663 |
12.2%
|
| Sysmiss | 52 |