Smoking outcome expectancies mediate the association between sensation seeking, peer smoking, and smoking among young adolescents.
Smoking outcome expectancies mediate the association between sensation seeking, peer smoking, and smoking among young adolescents.
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DOI：
10.1093/ntr/ntp174
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
R. Urbán
中科院分区：
文献类型：
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作者：
R. Urbán
背景感觉寻求与青少年吸烟有很强的相关性，但对这种联系的中介因子的研究还不是很成熟。本研究提出的模型包括前因变量(感觉寻求)、中介变量(感知同伴吸烟、结果预期包括消极后果、积极强化、消极强化、以及食欲和体重控制)和一个结果变量(过去30天内吸烟)。方法采用结构方程模型对匈牙利高中生(九年级，N=2565，平均年龄15.3岁，SD=0.56)的自我报告数据进行分析。在对主模型进行检验之前，通过验证性因素分析和结构方程模型对中介变量(结果期望量表)的结构效度进行了支持。用结构方程模型对最终模型进行检验，并对拟合度指数和直接影响与间接影响的比例进行了分析。结果本研究的中介模型具有较好的模型拟合度，支持感觉寻求-->；积极和消极强化-gt；吸烟行为路径和感觉寻求-->；感知同伴吸烟-->；积极和消极强化-gt；吸烟行为路径。总的间接效应解释了76%的感觉寻求和吸烟联系。结果支持积极强化期望和消极强化期望在感觉寻求和吸烟之间起中介作用的观点。讨论结果支持感知同伴吸烟、积极强化期望和消极强化期望在感觉寻求和吸烟之间起中介作用的观点。
BACKGROUND Sensation seeking is a strong correlate of smoking among adolescents, yet the research on mediators of this association is not well established. The proposed model of the present study includes antecedent variables (sensation seeking), mediators (perceived peer smoking, outcome expectancies including negative consequences, positive reinforcement, negative reinforcement, and appetite-and-weight control), and one outcome variable (smoking cigarettes during the past 30 days). METHODS Self-reported data obtained from Hungarian high-school students (ninth grade, N = 2,565, mean age 15.3 years, SD = 0.56) were analyzed with structural equation modeling. Before testing of the main model, the construct validity of mediators (outcome expectancy scales) was supported with confirmatory factor analysis (CFA) and structural equation modeling. The final model was tested with structural equation modeling, and the goodness-of-fit indices and the proportion of direct and indirect effects were analyzed. RESULTS Our mediational model had an excellent model fit, and this study supported both the proposed sensation seeking-->positive and negative reinforcement-->smoking behavior pathways and sensation seeking-->perceived peer smoking-->positive and negative reinforcement-->smoking behavior pathways. The total indirect effect explains 76% of sensation seeking and smoking association. Results support the notion that positive and negative reinforcement expectancies mediate between sensation seeking and smoking. DISCUSSION Results support the notion that perceived peer smoking, positive and negative reinforcement expectancies mediate between sensation seeking and smoking.