| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarette | 1769 |
89.2%
|
| 2 | an ex- smoker | 146 |
7.4%
|
| 3 | An occasional smoker | 42 |
2.1%
|
| 4 | An frequent smoker | 8 |
0.4%
|
| 5 | A Daily smoker | 19 |
1%
|
| Sysmiss | 44 |