OBJECTIVE This study determined the characteristics of engagement and whether engagement in an adaptive preventive intervention (API) was associated with reduced binge drinking and alcohol-related consequences. METHOD Incoming students were recruited for a sequential multiple assignment randomized trial (SMART; N = 891, 62.4% female, 76.8% non-Hispanic White) with an assessment-only control group. The API occurred during the first semester of college, with outcomes assessed at the end of the semester. The API involved two stages. Stage 1 included universal intervention components (personalized normative feedback [PNF] and self-monitoring). Stage 2 bridged heavy drinkers to access additional resources. We estimated the effect of engagement in Stage 1 only and in the whole API (Stages 1 and 2) among the intervention group, and the effect of the API versus control had all students assigned an API engaged, on alcohol-related outcomes. RESULTS Precollege binge drinking, intention to pledge a fraternity/sorority, and higher conformity motives were most associated with lower odds of Stage 1 engagement. Action (readiness to change) and PNF engagement were associated with Stage 2 engagement. API engagement was associated with significant reductions in alcohol-related consequences among heavy drinkers. Compared to the control, we estimated the API would reduce the relative increase in alcohol-related consequences from baseline to follow-up by 25%, had all API students engaged. CONCLUSIONS Even partial engagement in each component of the "light-touch" API rendered benefits. Analyses suggested that had all students in the intervention group engaged, the API would significantly reduce the change in alcohol-related consequences over the first semester in college. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

中文翻译：

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检查大学生饮酒适应性预防干预中的参与效果。

目的 本研究确定了参与的特征以及参与适应性预防干预 (API) 是否与减少酗酒和酒精相关后果相关。方法 招募新生参加一项序贯多重分配随机试验（SMART；N = 891，62.4% 女性，76.8% 非西班牙裔白人），对照组仅进行评估。API 发生在大学第一学期，并在学期结束时评估结果。API 涉及两个阶段。第一阶段包括普遍干预组成部分（个性化规范反馈 [PNF] 和自我监控）。第二阶段为酗酒者提供了获取额外资源的桥梁。我们估计了干预组中参与度仅在第一阶段和整个 API（阶段 1 和阶段 2）中的影响，以及 API 与对照组（所有学生都分配了参与的 API）对酒精相关结果的影响。结果大学前的酗酒、加入兄弟会/联谊会的意愿以及较高的从众动机与第一阶段参与度较低的几率最相关。行动（准备改变）和 PNF 参与度与第二阶段参与度相关。API 的参与与酗酒者中酒精相关后果的显着减少有关。与对照组相比，我们估计，如果所有 API 学生都参与的话，API 将使酒精相关后果从基线到随访的相对增加减少 25%。结论 即使部分参与“轻触式”API 的每个组件也会带来好处。分析表明，如果干预组中的所有学生都参与其中，API 将显着减少大学第一学期与酒精相关的后果的变化。（PsycInfo 数据库记录 (c) 2023 APA，保留所有权利）。