College of Criminology and Criminal Justice, Florida State University, 112 S. Copeland Street, Tallahassee, FL 32306.
Edna Bennett Pierce Prevention Research Center, Pennsylvania State University, 310 BioBehavioral Health, University Park, PA 16802.
J Res Adolesc. 2016 Dec;26(4):645-657. doi: 10.1111/jora.12215. Epub 2015 Jul 25.
This study used longitudinal survey and social network data covering sixth through ninth grades to test whether internalizing symptoms make early adolescents more prone to (1) exposure to and (2) influence by substance-using peers. Random effects regressions revealed that increases in symptoms were significantly associated with increases in the proportion of friends who used cigarettes, alcohol, and marijuana; some associations weakened across grades. Event history models revealed that the effect of friends' smoking on smoking initiation decreased as internalizing symptoms increased; symptoms did not moderate the effects of friends' alcohol and marijuana use on alcohol and marijuana use initiation. These findings counter the influence hypothesis of the co-occurrence of internalizing symptoms with substance use and partly support the exposure hypothesis.
本研究使用了涵盖六年级至九年级的纵向调查和社会网络数据，以检验内化症状是否会使青少年早期更容易（1）接触和（2）受到使用物质的同伴的影响。随机效应回归显示，症状的增加与使用香烟、酒精和大麻的朋友比例的增加显著相关；一些关联在年级之间减弱。事件历史模型显示，随着内化症状的增加，朋友吸烟对吸烟起始的影响减小；症状并没有调节朋友饮酒和使用大麻对饮酒和使用大麻起始的影响。这些发现反驳了内化症状与物质使用同时发生的影响假说，部分支持了暴露假说。
