| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarette | 1624 |
88.5%
|
| 2 | an ex- smoker | 126 |
6.9%
|
| 3 | An occasional smoker | 51 |
2.8%
|
| 4 | An frequent smoker | 16 |
0.9%
|
| 5 | A Daily smoker | 18 |
1%
|
| Sysmiss | 15 |