Young adulthood is an important developmental period for investigating the nature of violent behavior. This study examines the unique contribution of alcohol use to violence perpetration among young adults in the Australian community, after accounting for the influence of sociodemographic, early life, trait, and well-being influences. Cross-sectional, self-report data was collected from 507 young adults aged 18-20 years in the Australian general community via an online survey. Sequential logistic regressions examined the relative and independent contribution of adverse childhood experiences (ACEs), impulsivity, psychological distress, and hazardous alcohol use to past-year violent behavior. Results show one in eight young adults aged 18-20 (13%) reported at least one act of violent behavior in the past year, primarily assault perpetrated against another person. Sequential logistic regression identified that after controlling for other risk factors, the number of ACEs reported and hazardous alcohol use were independently and positively associated with increased odds of reporting violent behavior in young adulthood. These findings demonstrate that ACEs and hazardous alcohol use are important, independent correlates of violent behavior in young adults. While preventing early adversity is key for reducing violence in the community, this evidence suggests that it is also important to target proximal causes such as hazardous alcohol use. Increasing early and widespread access to evidence-based, trauma-informed violence-prevention programs targeting risk factors across multiple settings is critical for reducing harm and supporting young people into healthy adulthood.

青年期是研究暴力行为性质的重要发展时期。本研究在考虑了社会人口、早期生活、特质和幸福感的影响后，探讨了酒精使用对澳大利亚社区年轻人暴力犯罪的独特贡献。通过在线调查从澳大利亚普通社区的 507 名 18-20 岁的年轻人中收集了横断面的自我报告数据。顺序逻辑回归检查了不良童年经历 (ACE)、冲动、心理困扰和危险饮酒对过去一年的暴力行为的相对和独立贡献。结果显示，八分之一的 18-20 岁年轻人（13%）在过去一年中报告了至少一次暴力行为，主要是针对他人的攻击。顺序逻辑回归发现，在控制其他风险因素后，报告的 ACE 数量和危险酒精使用与青年期报告暴力行为的几率增加独立且正相关。这些发现表明，ACEs 和危险的酒精使用是年轻人暴力行为的重要、独立的相关因素。虽然预防早期逆境是减少社区暴力的关键，但这一证据表明，针对近端原因（例如危险饮酒）也很重要。增加早期和广泛获得基于证据的，