Valente Thomas W, Miljkovic Kristina, Barrington-Trimis Jessica, Piombo Sarah E
Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
Soc Sci Med. 2025 Sep;381:118290. doi: 10.1016/j.socscimed.2025.118290. Epub 2025 Jun 3.
Adolescent social networks have been shown to be associated with use of tobacco, marijuana, and alcohol. This study seeks to replicate these associations with new data and compare perceived friend use with friend self-report as well as explore racial differences. Data were collected from up to 14 demographically diverse schools in Southern California and consisted of 23,012 surveys collected bi-annually from 9th to 12th grade with analyses conducted cross-sectionally. Regression models included fixed effects for school, and random effects for students. Results show that both perceived friend use and friend self-report were independently associated with individual use. Second, adolescents who named more friends in response to a network question were less likely to report substance use, whereas overall those who were named as friends were no more or less likely to report use. Third, students who identified as Asian ethnicity were less likely to report any substance use, but remained susceptible to peer influence on substance use. Finally, for all students, we show that being named as a friend by Asian students was protective against use of all three substances.
青少年社交网络已被证明与烟草、大麻和酒精的使用有关。本研究旨在用新数据复制这些关联，并比较感知到的朋友使用情况与朋友的自我报告，同时探讨种族差异。数据收集自南加州多达14所人口结构多样的学校，包括从9年级到12年级每两年收集一次的23012份调查问卷，并进行横断面分析。回归模型包括学校的固定效应和学生的随机效应。结果表明，感知到的朋友使用情况和朋友的自我报告都与个人使用情况独立相关。其次，在回答社交网络问题时提到更多朋友的青少年报告物质使用的可能性较小，而总体而言，那些被列为朋友的人报告使用的可能性并无差异。第三，自我认定为亚洲族裔的学生报告任何物质使用的可能性较小，但仍然容易受到同伴在物质使用方面的影响。最后，对于所有学生，我们表明被亚洲学生列为朋友可预防所有三种物质的使用。
