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. Author manuscript; available in PMC: 2016 Jan 31.

Published in final edited form as: Drug Alcohol Depend. 2014 Nov 26;0:235–242. doi: 10.1016/j.drugalcdep.2014.11.009

Table 4.

Results of hierarchical linear models examining main effects of family history density and interactions with time in adolescents treated for alcohol or substance dependence.

	Total drinks	Days of marijuana use	Days of other drug use
Covariates	b (SE)	b (SE)	b (SE)
Year	0.12 (.01)^***	0.11 (.03)^***	0.18 (.02)^***
Year²	− 0.004 (.001)^**	− 0.01 (.003)^**	− 0.02 (.002)^***
Study sample	0.34 (.22)	0.41 (.24)	0.46 (.24)
Conduct disorder	0.32 (.29)	0.21 (.32)	0.25 (.31)
Gender (male)	1.14 (.22)^***	1.19 (.24)^***	0.97 (.24)^***
Baseline age	− 0.04 (.09)	− 0.18 (.09)	− 0.11 (.09)
Depression	0.14 (.01)^***	0.08 (.03)^**	0.24 (.02)^***
Anxiety	0.40 (.01)^***	0.13 (.03)^***	0.22 (.02)^***
FH density	− 0.25 (.22)	− 0.28 (.24)	− 0.19 (.24)
FH x year	0.20 (.02)^***	0.16 (.04)^***	0.05 (.03)
FH x year²	− 0.02 (.002)^***	− 0.02 (.004)^***	− 0.001 (.003)

^*

p < .05,

^**

p < .01,

^***

p < .001.