| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1594 |
87.7%
|
| 2 | I have not stopped smoking | 38 |
2.1%
|
| 3 | 1-3 months | 48 |
2.6%
|
| 4 | 4-11 months | 21 |
1.2%
|
| 5 | One year | 28 |
1.5%
|
| 6 | 2 years | 27 |
1.5%
|
| 7 | 3 years or longer | 62 |
3.4%
|
| Sysmiss | 12 |