Table 4: Early parental divorce experienced when the adolescents were 15/16 year-old or younger (n=530) across risk behaviors in a cross-sectional study of 15/16 year-old adolescents (n=2422) when odds ratios (95% confidence interval) were adjusted for demographic, socio-economic and mental health variables.

Independent Variables	Smoking	Snus	Frequent Drinking	Doping Agents
Crude results
Early parental divorce	1.4 (1.1-1.7)	1.0 (0.7-1.4)	1.1 (0.8-1.4)	1.7 (1.2-2.3)
Adjusted for internalized mental health problems
Early parental divorce (ref=continuously married)	1.3 (1.1-1.6)	1.0 (0.7-1.4)	1.2 (0.9-1.5)	1.6 (1.2-2.2)
Gender (ref=boys)	1.3 (1.1-1.6)	0.3 (0.2-0.6)	1.2 (0.9-1.5)	1.0 (0.7-1.3)
Ethnicity (ref=western)	0.6 (0.4-0.9)	0.3 (0.1-0.7)	0.7 (0.4-1.2)	0.7 (0.4-1.2)
Family economy (ref=average and below)	1.0 (0.8-1.2)	1.3 (0.9-2.0)	1.9 (1.5-2.5)	1.2 (0.9-1.7)
Social support (ref=low)	0.8 (0.6-1.1)	1.2 (0.7-2.2)	1.1 (0.8-1.7)	0.7 (0.4-1.1)
Internalized problems (ref=no)	2.0 (1.5-2.5)	1.4 (0.8-2.5)	1.7 (1.3-2.2)	2.4 (1.7-3.4)
Adjusted for externalized mental health problems
Early parental divorce (ref=continuously married)	1.3 (1.1-1.6)	1.0 (0.7-1.5)	1.2 (0.9-1.6)	1.6 (1.2-2.3)
Gender (ref=boys)	1.6 (1.3-1.9)	0.4 (0.2-0.7)	1.3 (1.1-1.6)	1.2 (0.9-1.7)
Ethnicity (ref=western)	0.6 (0.4-0.9)	0.3 (0.1-0.7)	0.7 (0.4-1.2)	0.7 (0.4-1.3)
Family economy (ref=average and below)	1.0 (0.8-1.2)	1.4 (0.9-2.1)	1.9 (1.4-2.5)	1.2 (0.9-1.7)
Social support (ref=low)	0.8 (0.6-1.1)	1.3 (0.7-2.4)	1.2 (0.8-1.7)	0.7 (0.5-1.4)
Externalized problems (ref=no)	3.0 (2.3-4.2)	2.4 (1.5-3.8)	2.3 (1.7-3.3)	5.2 (3.6-7.4)