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Abstract

Introduction and Aims: Associations between substance use and aggression may be amplified by simultaneous alcohol andillicit drug use. This study aims to compare differences in involvement in past aggression between people who use different substances while accounting for broader risk propensity. Design and Methods: Self-reported data on past three-month involvement in verbal and physical aggression (victim or perpetrator) were drawn from interviews conducted in night-timeentertainment districts in seven Australian cities (n = 5078). Using inverse probability of treatment weighting techniques, participants who reported alcohol versus alcohol and illicit drug use on the night of interview (including ecstasy, cannabis andother illicit stimulant subgroups) were weighted on the basis of drug use risk covariates (e.g. alcohol consumed, gender) todetermine differences in involvement in aggression involvement. Results: After weighting for covariates, individuals whoreported consuming any illicit drug + alcohol and ecstasy + alcohol combinations were more likely to be involved in physical(33% and 105%, respectively) and verbal (36% and 116%, respectively) aggression in the previous 3-months when compared to those who consumed alcohol only. Cannabis + alcohol and other illicit stimulant + alcohol combinations were nomore likely to be involved in either forms of aggression. Discussion and Conclusions: The likelihood of having beeninvolved in past aggressive incidents was higher among those who reported any illicit drug + alcohol and ecstasy + alcoholcombinations than those who reported alcohol exclusively, after accounting for covariates. These findings highlight individualsthat may benefit most from the development of tailored health promotion/preventative safety interventions in night-time settings.

Item Type:	Article
Authors/Creators:	Norman, T and Peacock, A and Bruno, R and Chan, G and Morgan, A and Voce, I and Droste, N and Taylor, N and Coomber, K and Miller, PG
Keywords:	alcoholic intoxication, street drugs, aggression
Journal or Publication Title:	Drug and Alcohol Review
Publisher:	Wiley-Blackwell
ISSN:	0959-5236
DOI / ID Number:	10.1111/dar.12998
Copyright Information:	Copyright 2019 Australasian Professional Society on Alcohol and other Drugs
Related URLs:	Google Scholar: Bruno, R UTAS Profile: Bruno, R
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