Objective To analyze the status and correlation between screen time,screen behavior type,and anxiety,depression among children and adolescents in Jiangxi Province,so as to provide a basis for effective intervention measures.Methods Using the method of stratified random sampling,8 851 primary and secondary school students in 11 districts of Jiangxi Province were in-vestigated by questionnaire during September to December in 2020.Anxiety and depression status were investigated using the State Trait Anxiety Inventory(STAI)and the Center for Epidemiological Studies Depression Scale for Children(CES-DC),respectively.Single factor analysis using x2-test,t-test,analysis of variance,and multivariate analysis using generalized linear models.Results On school days and weekends,4.7％and 20.4％of primary and secondary school students in Jiangxi Province had a total screen time of over 2 hours per day,respectively.The weighted scores of the total screen time(primary school students:1.88±0.68,junior middle school students:1.96±0.71,high school students:2.03±0.80)and time spent for playing video games(primary school students:1.51±0.64,junior middle school students:1.62±0.69,high school students:1.68±0.75)daily showed an upward trend with the increase of educational stage(F=31.48,42.13),and with significantly higher in boys(1.97±0.74,1.66±0.72)than girls(1.93±0.72,1.53±0.66)(t=2.48,9.07)(P＜0.05).The average scores of state anxiety and trait anxiety were(42.20±9.05)and(40.65±9.85),which showed an upward trend with the increase of educational stage(F=168.12,241.98),and were higher in girls than boys(t=6.63,8.48)(P＜0.01).The average score of depression was(11.99±11.00),which was lower in elementary school students than middle school students and high school students(F=136.42),with significantly higher in girls(t=6.85)(P＜0.01).On school days,with the increase of total screen time and time spent for playing video games daily,the risk of state anxiety,trait anxiety,and depression among primary and secondary school students significantly increased(OR=6.70-818.98,P＜0.01).On weekends,among primary and secondary school students,the total screen time of＞1-2 hours daily reduced the risk of state anxiety(OR=0.30).The risk of developing trait anxiety among students playing video games for more than 2 hours daily was 2.50 times higher than those without screen behavior(OR=2.50).The risk of developing depression with a total screen time of more than 2 hours daily was 3.15 times higher those whithout screen behavior(OR=3.15).The risk of developing depression among students playing video games＞0-1,＞1-2,＞2 h daily was 2.14,2.50,4.90 times that of those without screen behaviors(OR=2.14,2.50,4.90),and showed an upward trend with the increase of educational stage(P＜0.05).Conclusions Screen behaviors of primary and middle school students in Jiangxi Province are positively associated with the risk of anxiety and depression,but the total daily video time of＞1-2 h on weekends was negatively associated with state anxiety.It is necessary to control the screen time as much as possible and reduce the risk of anxiety and depression.
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