Collateral damage from college drinking: A conceptual framework for alcohol's harms to others among US college students

Background: A growing literature shows that drinkers can harm bystanders through alcohol-related harms to others (HTO). The burden of HTO is particularly consequential in college environments, where heavy alcohol consumption and related harms are highly prevalent. A key limitation to the current literature on HTO among college students is that the determinants of HTO in college settings are not well-described. Objective: This article presents an evidence- and theory-based conceptual framework of HTO among United States college students. Methods: This study used a literature review in Embase, PsycInfo, PubMed, and Web of Science to determine the prevalence of HTO among college students and literature gaps. Researchers supplemented college HTO literature with broader HTO literature to develop a conceptual framework. Results: Prevalence estimates for HTO among college populations range from 59% to 84%. Literature on HTO among college students is mostly confined to brief sections of larger surveys. The college HTO literature lacks the level of detail necessary to support methodologically rigorous research. Conclusions: HTO are prevalent among college populations but their prevalence and etiology are not well understood. This likely leads to systematic undercounting of the impact of alcohol in college settings, exacerbating the translation gap between what the research says is effective and what colleges actually do. Better understanding of HTO mechanisms through which drinkers harm those around them would inform alcohol research and policy on college campuses, and lead to more accurate assessments of the degree to which stronger alcohol policies could benefit all students, regardless of their drinking patterns.