| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1427 |
70%
|
| 2 | I did not smoke during the past 12 months | 311 |
15.3%
|
| 3 | Yes | 176 |
8.6%
|
| 4 | No | 124 |
6.1%
|
| Sysmiss | 69 |