| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 874 |
86.9%
|
| 2 | I have not stopped smoking | 52 |
5.2%
|
| 3 | 1-3 months | 19 |
1.9%
|
| 4 | 4-11 months | 14 |
1.4%
|
| 5 | One year | 16 |
1.6%
|
| 6 | 2 years | 6 |
0.6%
|
| 7 | 3 years or longer | 25 |
2.5%
|
| Sysmiss | 12 |