| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1117 |
81.7%
|
| 2 | I did not smoke during the past 12 months | 156 |
11.4%
|
| 3 | Yes | 61 |
4.5%
|
| 4 | No | 34 |
2.5%
|
| Sysmiss | 11 |