Age adjusted odds ratios (OR) (95% confidence intervals (CI)) for “regular” and “now and then” snus use in relation to any lifetime cigarette smoking among males in the Swedish Twin Registry
| Ever smoker* | Never smoker | OR (95%CI) | |||
|---|---|---|---|---|---|
| *”Ever smoker” includes men who reported smoking “regularly” and “now and then”. Men who smoked “at parties” were excluded since they did not contribute ages at onset of tobacco use. | |||||
| †Men who began using snus before cigarettes. | |||||
| Regular snus use | 262† | 4.1% | 976 | 18.5% | 0.2 (0.2 to 0.3) |
| Now and then snus use | 29† | 0.5% | 60 | 1.1% | 0.5 (0.3 to 0.7) |
| Never used snus | 5466 | 95.4% | 4237 | 80.4% | 1.0 |