Objective To analyze the association between latent class of health-risk behaviors and depressive symptoms among middle school students,so as to provide the evidence for the prevention and intervention of depressive symptoms among middle school students.Methods Students in two junior high schools,two senior high schools and one vocation-al high school in Yinzhou District,Ningbo City,Zhejiang Province,were selected using a stratified multi-stage cluster sampling method.Demography and health-risk behaviors were collected using questionnaire surveys,depressive symptoms were investigated using the Center for Epidemiological Studies Depression-10 Scale,and latent class analysis was con-ducted for health-risk behaviors.The association between different latent classes and depressive symptoms was analyzed using a multivariable logistic regression model.Results A total of 1 247 students were surveyed,including 641 boys(51.40%)and 606 girls(48.60%).There were 452 junior high school students(36.25%),532 high school students(42.66%)and 263 vocational high school students(21.09%).Latent class analysis showed that health-risk behaviors in students were classified into three groups,namely healthy behavior group(52.93%),poor diet group(39.94%)and high-risk behavior group(7.14%),and the detection rates of depressive symptoms were 7.12%,18.88%and 52.81%,respec-tively,with a statistically significant difference between groups(P<0.05).Multivariable logistic regression analysis showed that after adjusting for age,gender,native place,only child and living on campus,the poor diet group(OR=3.107,95%CI:2.086-4.627)and high-risk behavior group(OR=15.401,95%CI:9.031-26.262)had higher risks of depressive symptoms compared with the healthy behavior group.Conclusion Having high-risk behaviors and poor diet may in-crease the risk of developing depressive symptoms among middle school students.
关键词
中学生/健康危险行为/抑郁症状/潜在类别分析
Key words
middle school students/health-risk behavior/depressive symptoms/latent class analysis