| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1858 |
90.9%
|
| 2 | I have not stopped smoking | 56 |
2.7%
|
| 3 | Less than 1 month | 20 |
1%
|
| 4 | 1-3 months | 34 |
1.7%
|
| 5 | 4-11 months | 20 |
1%
|
| 6 | One year | 14 |
0.7%
|
| 7 | 2 years | 15 |
0.7%
|
| 8 | 3 years or longer | 28 |
1.4%
|
| Sysmiss | 2 |