Title: Association between physical activity,screen-based media use and depressive symptoms among children
Abstract: Objective To analyze the association between physical activity( PA),screen-based media use( SBM) and depressive symptoms among children. Methods All the 1 472 subjects were recruited from grade 3- 5 in 12 primary schools in Dongcheng District of Beijing. Physical inactivity was defined as who can' t meet recommended physical activity( PA) guidelines of at least 1 h moderate to vigorous physical activity( MVPA) per day. Screen abuse was defined as subjects who can' t meet the recommendations for screen use not more than 2h per day. Subjects whose Children' s Depression Inventory( CDI) score higher than 12 were classified as having depressive symptoms. The detection rate of physical inactivity,screen abuse and depressive symptoms were compared between boys and girls. Chi-square test and logistic regression were used to analyze the relationship between PA,SBM and depressive symptoms among children. Results Data were available for 1 472 children including 745 boys and 727 girls. The average days which meet PA guidelines during the past 7 days was 4.36±2.56. Only 16.37%( 241 / 1 472) children could meet the PA guidelines every day. The average time of SBM was 1.49± 1.43 h / d. The prevalence of screen abuse was 22.15%( 314 / 1472).The mean CDI score was 9.75±6.38,with 31.05%( 457 / 1 472) participants were categorized as having depressive symptom. The prevalence of physical inactivity was higher among girls[87.62%( 637 / 727) ] than boys[79. 73%( 594 / 745) ],while higher proportions of boys were classified as screen abuse [28. 46%( 212 / 745) ],depression symptom [37. 99%( 283 / 745) ] than girls[15.68%( 114/727),23.93%( 174/727) ]( P0.01). The prevalence of physical inactivity among children with depressive symptoms [86.87%( 397 / 457) ] was higher than children without depressive symptom [82.17%( 834 / 1015) ]( P = 0.024). The association between physical inactivity and depressive can only been seen in boys( P = 0. 007). The prevalence of screen abuse among children with depressive symptoms [22. 98%( 105 / 457) ] was higher than children without depressive symptoms [9. 36%( 95 /1 015) ]( P0.01). Screen abuse was associated with depressive symptoms in both boys and girls( P0.01). Compared with boys without depressive symptoms,the risk of physical inactivity [OR = 1.74( 95%CI: 1.17-2.58) ]and screen abuse [OR = 2.48( 95%CI: 1.69-3.64) ] among boys with depressive symptoms were higher. Among girls with depressive symptoms,the risk of screen abuse was higher [OR = 3.04( 95%CI: 1.80-5.12) ]. Conclusion Physical inactivity and screen abuse is associated with depressive symptoms among boys,while only screen abuse is associated with depressive symptom among girls.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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