Decomposing the components of friendship and friends' influence on adolescent drinking and smoking.
Decomposing the components of friendship and friends' influence on adolescent drinking and smoking.
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DOI：
10.1016/j.jadohealth.2011.11.013
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发表时间：
2012-08
影响因子：
7.6
通讯作者：
Valente, Thomas W.
中科院分区：
文献类型：
--
作者：
Fujimoto, Kayo;Valente, Thomas W.
关键词：
友谊网络是同伴影响力的重要来源。然而，现有的网络研究在如何操作友谊和朋友对青少年物质使用的影响方面有所不同。本研究使用社会网络分析来描述三种类型的友谊关系：（1）相互的或互惠的，（2）定向的，和（3）亲密的朋友。然后，我们研究了每种友谊类型对青少年饮酒和吸烟行为的相对影响。使用来自Add Health数据的饱和样本，一个具有全国代表性的高中青少年样本（N= 2，533嵌套在12所学校），我们使用网络暴露模型计算了朋友饮酒和吸烟的暴露水平，并使用固定效应模型计算了他们与个人饮酒和吸烟的关联。结果表明，（1）对青少年物质使用的影响大于（2），尤其是吸烟。关于（2）的方向性，青少年在饮酒和吸烟行为上同样受到提名和提名朋友的影响。结果（3）表明，来自“最好的朋友”的影响比来自非“最好的朋友”的影响要弱，这表明朋友提名的顺序可能不如提名互惠那么重要。本研究表明，在评估朋友对青少年物质使用的影响时，考虑友谊关系的不同特征是重要的。相关的政策影响进行了讨论。
Friendship networks are an important source of peer influence. However, existing network studies vary in terms of how they operationalize friendship and friend’s influence on adolescent substance use. This study uses social network analysis to characterize three types of friendship relations: (1) mutual or reciprocated, (2) directional, and (3) intimate friends. We then examine the relative effects of each friendship type on adolescent drinking and smoking behavior. Using a saturated sample from the Add Health data, a nationally representative sample of high-school adolescents (N=2,533 nested in 12 schools), we computed the level of exposure to drinking and smoking of friends using a network exposure model, and their association with individual drinking and smoking using fixed effect models. Results indicated that the influence from (1) is stronger on adolescent substance use than (2), especially for smoking. Regarding the directionality of (2), adolescents are equally influenced by both nominating and nominated friends on their drinking and smoking behavior. Results for (3) indicated that the influence from “best friends” was weaker than the one from non-“best friends,” which indicates that the order of friend nomination may not matter as much as nomination reciprocation. This study demonstrates that considering different features of friendship relationships is important in evaluating friends’ influence on adolescent substance use. Related policy implications are discussed.
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