Only snus (boys) | Only cigarettes (both sexes) | Both cigarettes and snus (boys) | ||||
---|---|---|---|---|---|---|
Exposure to: | OR | 95 % CI | OR | 95 % CI | OR | 95 % CI |
*Adjusted for the other parent’s use of tobacco (any v none). | ||||||
Mother’s tobacco use* | ||||||
No tobacco use | 1.0 | 1.0 | 1.0 | |||
Only snus | 4.2 | 0.8 to 21.4 | 0.7 | 0.1 to 5.7 | – | – |
Only cigarettes | 1.8 | 0.8 to 4.0 | 2.4 | 1.6 to 3.6 | 1.7 | 0.7 to 3.8 |
Both cigarettes and snus | 4.5 | 0.5 to 43.7 | 1.9 | 0.2 to 16.1 | – | – |
Father’s tobacco use* | ||||||
No tobacco use | 1.0 | 1.0 | 1.0 | |||
Only snus | 3.0 | 1.4 to 6.4 | 1.1 | 0.6 to 1.8 | 1.4 | 0.5 to 3.8 |
Only cigarettes | 1.2 | 0.4 to 3.6 | 1.3 | 0.8 to 2.1 | 2.0 | 0.8 to 5.2 |
Both cigarettes and snus | 1.9 | 0.5 to 6.9 | 1.1 | 0.5 to 2.3 | 2.9 | 0.9 to 9.3 |
Parents’ use of tobacco | ||||||
Neither parent | 1.0 | 1.0 | 1.0 | |||
One parent | 1.3 | 0.6 to 3.0 | 2.4 | 1.6 to 3.5 | 1.3 | 0.6 to 3.0 |
Both parents | 4.6 | 2.1 to 10.2 | 2.2 | 1.3 to 3.6 | 3.1 | 1.3 to 7.5 |