| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1031 |
71.4%
|
| 2 | I have not stopped smoking | 145 |
10%
|
| 3 | 1-3 months | 90 |
6.2%
|
| 4 | 4-11 months | 42 |
2.9%
|
| 5 | One year | 23 |
1.6%
|
| 6 | 2 years | 35 |
2.4%
|
| 7 | 3 years or longer | 78 |
5.4%
|
| Sysmiss | 2 |