| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 425 |
63.4%
|
| 2 | I have not stopped smoking | 63 |
9.4%
|
| 3 | 1-3 months | 71 |
10.6%
|
| 4 | 4-11 months | 27 |
4%
|
| 5 | One year | 25 |
3.7%
|
| 6 | 2 years | 14 |
2.1%
|
| 7 | 3 years or longer | 45 |
6.7%
|
| Sysmiss | 14 |