. Author manuscript; available in PMC: 2014 May 1.

Published in final edited form as: J Subst Abuse Treat. 2012 Dec 8;44(5):10.1016/j.jsat.2012.11.003. doi: 10.1016/j.jsat.2012.11.003

Table 3. The effect of DBD status on youth marijuana abstinence, marijuana use, and externalizing behavior from intake to 9 month follow-up.

Estimated Model Parameter	THC Positive Urine Drug Screen^a		% days of Marijuana Use^b			Externalizing Behavior
Estimated Model Parameter	THC Positive Urine Drug Screen^a		% days of Marijuana Use^b			Maternal Report^c			Parental Report^d

	OR	95% CI	β	SE	d	β	SE	d	β	SE	d

Model 1
DBD Status	1.63	[0.80, 3.32]	0.11^*	0.05	0.23	0.47^***	0.05	0.95	0.46^***	0.06	0.95
Treatment Condition^e	0.72	[0.36, 1.46]	−0.13^*	0.05	0.26	− 0.10^*	0.05	0.21	0.02	0.06	0.04
Model 2
DBD × Treatment Condition	2.20	[0.52, 9.25]	−0.77	0.86	0.18	− 0.25	0.83	0.06	−0.16	0.86	0.05

	Contrasts

DBD⁺:EXP vs. CONTROL	0.99	[0.40, 2.50]	−0.15^*	0.06	0.34	− 0.11	0.06	0.23	0.01	0.07	0.02
DBD⁻:EXP vs. CONTROL	0.45	[0.15, 1.36]	−0.13	0.05	0.16	− 0.10	0.05	0.17	0.02	0.06	0.07

Note:

Results are from Generalized Estimation Equation analysis.

Results are from Mixed Model Repeated Measures analysis. OR = odds ratio; CI= Confidence interval; β = standardized beta estimates; SE= standard error; d= Cohen’s effect size.

n = 68.

n = 51.

Treatment condition was coded as 1= EXP, 0 = Control. DBD = Disruptive behavior disorder. EXP = Experimental.

p < .05.

^**

p < .01.

^***

p <.001.