Sexual minority women (SMW; individuals who identify as women and as lesbian, bisexual, or with another sexual minority identity) are at increased risk for problematic alcohol use compared to their heterosexual counterparts. This increased risk has been attributed to minority stress. However, longitudinal research examining associations between minority stress and alcohol use outcomes is extremely limited and examinations of these associations at the daily level are nearly non-existent. Further, few longitudinal studies have examined mechanisms through which minority stress may impact alcohol use. We utilized data from a 14-day daily diary study of 98 SMW to examine daily-level associations between experiences of minority stress, alcohol consumption and consequences, and two proposed mediators of these associations (perceived coping efficacy, social interaction anxiety). Results indicated that on days when participants experienced minority stress events, they experienced lower coping efficacy, higher social interaction anxiety, and more drinking consequences than usual. Minority stress was not associated with same-day alcohol consumption. Perceived coping efficacy and social interaction anxiety mediated the same-day association between minority stress and drinking consequences. No prospective associations were significant, suggesting that studies with multiple assessments per day may be necessary to detect immediate effects of minority stress. Findings highlight the potential impact of daily experiences of minority stress on alcohol consequences and provide evidence that two general psychological processes may be mechanisms through which minority stress impacts alcohol consequences. These results provide evidence of a need for interventions that teach SMW skills for coping with minority stress and its psychological consequences.

与异性恋女性相比，性少数女性（SMW；认定为女性和女同性恋、双性恋或具有其他性少数群体身份的人）的酗酒风险增加。这种增加的风险归因于少数群体的压力。然而，检验少数族裔压力和酒精使用结果之间关联的纵向研究极为有限，并且几乎不存在对这些关联的日常检查。此外，很少有纵向研究检查少数压力可能影响酒精使用的机制。我们利用来自 98 个 SMW 的为期 14 天的日常日记研究的数据来检查少数群体压力、饮酒和后果的经历之间的日常关联，以及这些关联的两个拟议中介（感知的应对效力、社交焦虑）。结果表明，在参与者经历少数压力事件的日子里，他们比平时经历了较低的应对效率、较高的社交焦虑和更多的饮酒后果。少数族裔压力与当天饮酒无关。感知的应对效能和社交互动焦虑介导了少数群体压力和饮酒后果之间的当日关联。没有显着的前瞻性关联，这表明可能需要每天进行多次评估的研究来检测少数压力的直接影响。研究结果强调了少数民族压力的日常经历对酒精后果的潜在影响，并提供证据表明两种一般的心理过程可能是少数民族压力影响酒精后果的机制。