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To what extent is intoxication associated with aggression in bars? A multilevel analysis
Kathryn Graham1, D Wayne Osgood, Samantha Wells
1Social Factors and Prevention Interventions, Centre for Addiction and Mental Health, Suite 200-100 Collip Circle, London, Ontario, N6G 4X8, Canada. kgraham@uwo.ca
Journal of Studies on Alcohol
|April 13, 2006
Summary
Higher patron intoxication correlates with increased aggression frequency and severity in bars. Prevention should target high-intoxication venues and reduce overall patron intoxication levels to mitigate alcohol-related aggression.
Area of Science:
- Social Sciences
- Psychology
- Criminology
Background:
- Aggression in bars and clubs is a significant public health concern.
- Understanding the role of alcohol intoxication in aggression is crucial for developing effective interventions.
Purpose of the Study:
- To examine the relationship between patron intoxication levels and the frequency and severity of aggression.
- To analyze aggression at multiple ecological levels: individual, incident, visit, and bar.
Main Methods:
- Hierarchical Linear Modeling (HLM) was employed.
- Data collected from 1025 aggression incidents observed over 1334 nights in 118 bars and clubs.
- Trained observers documented incidents and patron intoxication levels.
Main Results:
- Patron intoxication significantly predicted aggression frequency at both visit and bar levels.
- A positive association was found between intoxication and aggression severity at incident and person levels, with a slight decrease at the highest intoxication levels.
- An interaction between person-level and visit-level intoxication influenced aggression severity.
Conclusions:
- Prevention strategies should identify and target bars with typically intoxicated patrons and aim to reduce intoxication levels broadly.
- Intoxication is a key risk factor for both the frequency and severity of aggression.
- Group dynamics and the interplay of individual and environmental intoxication levels are critical in alcohol-related aggression.