网络成瘾和睡眠时长在青少年受校园欺凌与抑郁间的链式中介作用

目的 探索青少年网络成瘾和睡眠时长在受校园欺凌与抑郁关系之间的中介作用，为青少年抑郁的预防干预提供依据。 方法 使用青少年健康相关危险行为问卷及CES - D抑郁量表，采用多阶段整群抽样法抽取徐州市4 190名青少年进行问卷调查。结果 在控制人口学等变量后，受校园欺凌、网络成瘾、睡眠时长对抑郁均有预测作用（r = 0.283，P＜0.01；r = 0.331，P＜0.01；r = - 0.184，P＜0.01）。路径分析表明，网络成瘾在受校园欺凌和青少年抑郁之间起中介作用；网络成瘾和睡眠时长在受校园欺凌和青少年抑郁间起链式中介作用。结论 受校园欺凌不仅直接影响青少年抑郁，还通过网络成瘾和睡眠时长的链式中介作用间接影响青少年抑郁。可通过减少青少年网络使用和提高睡眠时长来降低受校园欺凌对青少年抑郁的影响。

The link mediating effect of internet addiction and sleep duration on school bullying and depression in adolescents

Objective To explore the mediating role of internet addiction and sleep duration in the relationship between school bullying and depression among adolescents, so as to provide evidence for the prevention and intervention of adolescent depression. Methods Using the Adolescent Health-Related Risk Behavior Questionnaire and CES-D Depression scale, 4 190 adolescents in Xuzhou were selected for the survey using the cluster sampling method. Results After controlling demographic variables, school bullying, internet addiction and sleep duration were significantly associated with depression (r=0.283, P<0.01; r=0.331, P<0.01; r=-0.184, P<0.01). Path analysis showed that internet addiction played a mediating role between school bullying and depression. Internet addiction and sleep duration play a chain mediating role between school bullying and depression. Conclusion School bullying not only directly affects depression but also indirectly affects adolescent depression through the chain mediating effect of internet addiction and sleep duration. The effect of school bullying on depression among adolescent can be reduced by controlling adolescents’ internet use and improving their sleep duration.