| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1868 |
90.1%
|
| 2 | I have not stopped smoking | 52 |
2.5%
|
| 3 | 1-3 months | 53 |
2.6%
|
| 4 | 4-11 months | 24 |
1.2%
|
| 5 | One year | 27 |
1.3%
|
| 6 | 2 years | 11 |
0.5%
|
| 7 | 3 years or longer | 39 |
1.9%
|
| Sysmiss | 37 |