| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1400 |
85.6%
|
| 2 | I no longer smoke | 164 |
10%
|
| 3 | No, I smoke, but I never mix tobacco with other drugs | 46 |
2.8%
|
| 4 | yes, but one once or twice | 12 |
0.7%
|
| 5 | Yes, I have mixed tobacco with other drugs more than twice | 13 |
0.8%
|
| Sysmiss | 3 |