Institute for Social Research, University of Michigan, Ann Arbor, MI, USA.
Alcohol Clin Exp Res. 2021 May;45(5):1078-1090. doi: 10.1111/acer.14591. Epub 2021 Apr 2.
The current study examined the extent to which within-person variation in drinking motives differentiates moderate, binge, and high-intensity drinking; and independent associations of motives and drinking intensity with alcohol use consequences in a sample of young adult drinkers from across the United States.
Participants were past 30-day drinkers in the U.S. nationally representative Monitoring the Future 12 grade sample in 2018, who also reported alcohol use during a 14-day data collection burst 1 year later (N = 484 people, mean age 19.3 [SD 0.40], 43% female; N = 1042 drinking days) as part of the Young Adult Daily Life Study in 2019. Weighted multilevel modeling estimated within- and between-person associations of drinking motives, drinking intensity (i.e., moderate [women 1-3, men 1-4 drinks], binge [women 4-7, men 5-9 drinks], and high-intensity drinking [women 8+, men 10+ drinks]), and number of positive and negative alcohol consequences.
On days participants reported greater enhancement and social motives, they were more likely to engage in high-intensity (vs. binge) drinking and binge (vs. moderate) drinking and experience more positive alcohol consequences. On days participants reported greater enhancement and coping motives, they experienced more negative alcohol consequences. Binge (vs. moderate) drinking on a given day was associated with more positive and negative alcohol consequences; high-intensity (vs. binge) drinking on a given day was associated with more negative alcohol consequences that day. Moderation analyses indicated that social motives were associated with high-intensity (vs. binge) drinking only among college students.
Stronger drinking motives on a given day were associated with drinking intensity (enhancement and social motives) and negative consequences (enhancement and coping). High-intensity (vs. binge or moderate) drinking was associated with more negative consequences but not more positive consequences. These results underscore that high-intensity drinking and consequences vary across days and time-varying, occasion-specific risks such as current motivational context are appropriate targets for intervention.
本研究考察了个体内饮酒动机的变化在多大程度上区分了适度、 binge 和高强度饮酒；以及动机和饮酒强度与美国年轻成年饮酒者饮酒后果的独立关联。
参与者是美国全国代表性监测未来 12 年级样本中过去 30 天的饮酒者，他们还在 1 年后的 14 天数据收集期间报告了饮酒情况（N=484 人，平均年龄 19.3[0.40SD]，43%为女性；N=1042 个饮酒日），作为 2019 年年轻人日常生活研究的一部分。加权多层次模型估计了饮酒动机、饮酒强度（即适度[女性 1-3，男性 1-4 杯]、 binge[女性 4-7，男性 5-9 杯]和高强度饮酒[女性 8+，男性 10+杯]）以及阳性和阴性酒精后果的个体内和个体间关联。
参与者报告增强和社交动机较强的日子里，他们更有可能进行高强度（而非 binge）饮酒和 binge（而非适度）饮酒，并体验到更多的积极酒精后果。参与者报告增强和应对动机较强的日子里，他们体验到更多的负面酒精后果。特定日子的 binge（而非适度）饮酒与更多的积极和消极酒精后果相关；特定日子的高强度（而非 binge）饮酒与当天更多的负面酒精后果相关。调节分析表明，社交动机仅与大学生的高强度（而非 binge）饮酒相关。
特定日子里更强的饮酒动机与饮酒强度（增强和社交动机）和负面后果（增强和应对动机）相关。高强度（而非 binge 或适度）饮酒与更多的负面后果相关，但与更多的积极后果无关。这些结果强调，高强度饮酒和后果在不同日子和时间上变化，当前的动机环境等时变、特定场合的风险是干预的适当目标。
