. Author manuscript; available in PMC: 2016 Apr 1.

Published in final edited form as: Subst Use Misuse. 2015 Jan 21;50(5):674–684. doi: 10.3109/10826084.2014.998235

TABLE 1.

Significance testing for modification of the relationship between Marijuana/Alcohol use and weapon aggression

Effect modifier	Marijuana Misuse	High-risk Drinking
% African-American
Middle 50% of OR range	(1.99, 3.58)	(1.38, 1.93)
Likelihood Ratio Test Statistic	7.73(df = 1.91)^a	0.61(df = 1.00)
% Housing Vacant
Middle 50% of OR range	(2.22, 3.24)	(1.55, 1.65)
Likelihood Ratio Test Statistic	8.18(df = 2.12)^a	0.04(df = 1.00)
% Female Head of Household
Middle 50% of OR range	(1.76, 3.67)	(1.48, 1.98)
Likelihood Ratio Test Statistic	15.59(df = 3.43)^b	1.26(df = 1.00)
% Under 18
Middle 50% of OR range	(2.20, 2.98)	(1.55, 1.74)
Likelihood Ratio Test Statistic	2.75(df = 1.00)	0.29(df = 1.00)
# Package Outlets ¹/₄ mile
Middle 50% of OR range	(2.49, 5.66)	(1.55, 1.89)
Likelihood Ratio Test Statistic	12.21(df = 1.00)^b	0.59(df = 1.00)
# On-premises Outlets ¹/₄ mile
Middle 50% of OR range	(2.83, 2.83)	(1.64, 1.64)
Likelihood Ratio Test Statistic	0.22(df = 1.00)	0.17(df = 1.00)
# Drug Crimes ¹/₄ mile
Middle 50% of OR range	(1.96, 3.54)	(1.38, 1.89)
Likelihood Ratio Test Statistic	9.78(df = 2.20)^a	1.17(df = 1.00)
# Violent Crimes ¹/₄ mile
Middle 50% of OR range	(2.46, 3.42)	(1.57, 1.65)
Likelihood Ratio Test Statistic	1.71(df = 1.00)	0.02(df = 1.00)