Exposure to trauma (particularly interpersonal trauma), post-traumatic stress disorder (PTSD) symptoms, and low distress tolerance (DT; the ability to tolerate negative internal states), are all related to risk for alcohol use disorders (AUD). The aim of this study was to examine the main and interactive effects of PTSD symptom severity and DT in relation to current (past 30-day) alcohol consumption and binge drinking among emerging adult men and women with a history of sexual/physical assault. Participants were 572 undergraduate students (66% women) with a history of physical/sexual assault endorsing past month alcohol use. Participants completed the Distress Tolerance Scale (DTS), the PTSD Checklist for DSM-V (PCL-5), and an abbreviated Timeline Followback Questionnaire (TLFB), which assessed past 30-day total alcohol consumption (i.e., total number of drinks) and binge drinking frequency (i.e., 5+ drinks [4+ for women]). Negative binomial regression analyses revealed that male sex, higher trauma load (i.e., total number of trauma categories endorsed), and higher PTSD symptom severity were associated with both higher number of total drinks and higher frequency of binge drinking episodes. However, DT was not associated with either alcohol outcome when PTSD symptom severity was entered in the models. The interaction of PTSD symptom severity and DT was not significantly associated with total alcohol consumption or binge drinking. These results highlight the importance of investigating the unique contributions of PTSD symptoms and DT (as well as other transdiagnostic cognitive-affective constructs) in the onset and maintenance of AUD.

暴露于创伤（尤其是人际交往中），创伤后应激障碍（PTSD）症状和低痛苦承受能力（DT；能够承受负面内部状态的能力）都与饮酒障碍（AUD）的风险有关。这项研究的目的是研究在有性/身体侵犯史的成年男性和女性中，PTSD症状严重程度和DT与当前（过去30天）饮酒和暴饮酒的主要和交互作用。参加者为572名本科生（66％为女性），有身体/性侵犯史，过去一个月内曾使用过酒精。参与者完成了遇险耐受量表（DTS），DSM-V的PTSD检查表（PCL-5）和简短的时间轴回溯问卷（TLFB），该问卷评估了过去30天的总酒精消耗量（即饮料总数）和暴饮暴饮次数（即5种以上的饮料[女性为4种以上]） 。负二项式回归分析显示，男性，较高的创伤负荷（即，认可的创伤类别总数）和较高的PTSD症状严重程度与较高的总饮酒量和较高的暴饮次数有关。但是，当在模型中输入PTSD症状严重程度时，DT与任何饮酒结果均无关。PTSD症状严重程度与DT的相互作用与总饮酒量或暴饮暴食没有显着相关。