大学生冲动性在无聊倾向与进食行为间的中介作用

Boredom proneness and eating behavior among college students:mediating role of impulsivity

目的分析大学生无聊倾向、冲动性与进食行为之间的关系,为指导大学生形成健康进食行为提供参考。方法采用大学生无聊倾向问卷、Barrat冲动性量表和进食行为问卷,对从黑龙江省2所大学方便抽取的957名大学生进行调查。结果不同性别大学生进食行为得分差异有统计学意义,女生限制性进食、情绪性进食和外因性进食得分均高于男生(t值分别为5.48,6.70,6.14,P值均<0.05);不同年级学生得分差异无统计学意义(F值分别为1.17,0.42,0.89,P值均>0.05)。无聊倾向与冲动性、情绪性进食、外因性进食均呈正相关(P值均<0.05),与限制性进食相关无统计学意义;冲动性与限制性进食、情绪性进食和外因性进食均呈正相关(P值均<0.05)。冲动性在无聊倾向预测情绪性进食和外因性进食间均起到部分中介效应,所占比例分别为44.89%,47.29%。结论无聊倾向既可直接又可间接通过冲动性对大学生情绪性进食和外因性进食行为产生影响。

Objective To explore the relationships among boredom proneness, impulsivity, and eating behavior among college students. Methods All the participating college students （ n = 957） were surveyed with Boredom Proneness Questionnaire, the Barrat Impulsiveness Scale, and the Dutch Eating Behavior Questionnaire. Results Significant gender differences were found in restraint, emotional and external eating behaviors （t= 5.48, 6.70, 6.14, P〈0.05）, with female students than male students. Boredom proneness, impulsivity, and eating behavior significantly and positively correlated with each other. Impulsivity mediated the association between boredom proneness with emotional and external eating behavior （χ^2/df= 3.57, CFI= 0. 902, TLI= 0. 898, RMSEA = 0.047, SRMR=0.059 for emotional eating behavior; χ^2/df=4.43, CFI=0.912, TLI=0.904, RMSEA=0. 042, SRMR=0.054 for external eating behavior） which accounted for 44.89% and 47.29% respectively. Conclusion Boredom proneness has direct and indirect impact on emotional eating behavior and external eating behavior through impulsivity among college students.