| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1475 |
78.6%
|
| 2 | I have not stopped smoking | 107 |
5.7%
|
| 3 | 1-3 months | 119 |
6.3%
|
| 4 | 4-11 months | 44 |
2.3%
|
| 5 | One year | 45 |
2.4%
|
| 6 | 2 years | 33 |
1.8%
|
| 7 | 3 years or longer | 53 |
2.8%
|
| Sysmiss | 36 |