| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1859 |
87.8%
|
| 2 | I have not stopped smoking | 30 |
1.4%
|
| 3 | 1-3 months | 82 |
3.9%
|
| 4 | 4-11 months | 19 |
0.9%
|
| 5 | One year | 29 |
1.4%
|
| 6 | 2 years | 18 |
0.8%
|
| 7 | 3 years or longer | 81 |
3.8%
|
| Sysmiss | 7 |