Abstract：
Background: Personalized Normative Feedback (PNF) aims to modify misperceptions about peer consumption that influence one\'s drinking. PNF is usually a component in Brief Interventions delivered to university students. Despite this, whether PNF contributes to improving the effect of brief interventions is unclear. Objectives: This randomized controlled trial aimed to determine the role of PNF as an active ingredient in a face-to-face motivational brief intervention. Results: Participants were students from an Argentinian university (n=806; M=20.14; SD=3.17; 63.2% women) who presented at least one binge drinking episode in the last 12 months. Students were randomly assigned to 1) a Brief Intervention, 2) a Brief Intervention with PNF, or 3) an evaluation-only control group. The follow-up was three months later. After controlling sex and age, General Linear Models showed that both the brief intervention and the brief intervention with PNF reduced the quantity and frequency of alcohol consumption, binge drinking, and alcohol problems compared to the control condition. No differences were found between the brief intervention and the brief intervention with PNF. Also, treating eight students with brief intervention and 10 with brief intervention with PNF was necessary to benefit one student. Conclusions: In conclusion, this study demonstrates that brief intervention reduces alcohol consumption among Latin American university students and that PNF might not be an active ingredient of its effectiveness in this population. However, PNF could benefit students with specific characteristics, like those who overestimate their peers\' drinking, highlighting the need to study moderators of effectiveness further.
摘要：
背景：个性化规范反馈（PNF）旨在改变对影响饮酒的同伴消费的误解。PNF通常是向大学生提供简短干预的组成部分。尽管如此,PNF是否有助于改善简短干预的效果尚不清楚.目标：这项随机对照试验旨在确定PNF作为活性成分在面对面动机性简短干预中的作用。结果：参与者是来自阿根廷大学的学生（n=806;M=20.14;SD=3.17;63.2％的女性），在过去12个月中至少出现过一次暴饮暴食。学生被随机分配到1)简短干预，2)对PNF的短暂干预，或3)仅评估对照组。随访是三个月后。在控制了性别和年龄之后,一般线性模型表明，短暂干预和短暂干预PNF减少了饮酒的数量和频率，暴饮暴食,与对照条件相比，酒精问题。在使用PNF的短暂干预和短暂干预之间没有发现差异。此外，有必要对8名学生进行简短的干预，对10名学生进行简短的PNF干预，以使一名学生受益。结论：总之，这项研究表明,在拉丁美洲大学生中,短暂的干预可以减少饮酒量,而且PNF可能不是其在这一人群中有效性的活性成分.然而,PNF可以使具有特定特征的学生受益，就像那些高估同龄人饮酒的人，强调需要进一步研究有效性的主持人。
