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

Published in final edited form as: Drug Alcohol Depend. 2013 Feb 4;132(0):63–68. doi: 10.1016/j.drugalcdep.2013.01.002

Table 3.

The association between marijuana withdrawal symptoms and general aggression: Logistic regression results

	Model 1 OR (95% CI)	Model 2 OR (95% CI)	Model 3 OR (95% CI)
Withdrawal (2 or more symptoms)	1.07 (0.82, 1.40)	0.97 (0.69, 1.36)	1.10 (0.87, 1.40)
History of aggression	1.47 (1.23, 1.75)^***	1.27 (1.02, 1.57)^*	1.59 (1.33, 1.92)^***
Withdrawal X History of aggression	---	1.59 (1.00, 2.53)^*	1.19 (0.80, 1.77)
Relationship aggression	---	---	1.29 (1.10, 1.51)^**
Quantity by Frequency of marijuana use	1.01 (1.00, 1.01)^**	1.01 (1.00, 1.01)^**	1.01 (1.00, 1.02)^***
(range: 1 to 220)
Age	0.95 (0.94, 0.96)^***	0.95 (0.94, 0.96)^***	0.95 (0.94, 0.96)^***
Female gender	0.95 (0.94, 0.96)^***	0.57 (0.48, 0.68)^***	0.52 (0.45, 0.61)^***
Household income	1.01 (0.98, 1.04)	1.01 (0.98, 1.04)	1.00 (0.98, 1.02)
Education	0.78 (0.75, 0.82)^***	0.78 (0.74, 0.82)^***	0.83 (0.79, 0.86)^***
Antisocial symptoms (other than aggression)	1.36 (1.32, 1.41)^***	1.36 (1.32, 1.41)^***	1.34 (1.30, 1.38)^***
Alcohol use disorder	1.25 (1.03, 1.53)^*	1.25 (1.03, 1.53)^*	1.21 (1.03, 1.41)^*
Drug use disorder (other than marijuana)	2.84 (1.51, 5.36)^**	1.75 (1.42, 2.16)^**	1.47 (1.26, 1.72)^***

Note. All estimates accounted for the survey design.

^*

p ≤ 0.05,

^**

p < 0.01,

^***

p < 0.001