期刊
JOURNAL OF AFFECTIVE DISORDERS
卷 301, 期 -, 页码 240-247出版社
ELSEVIER
DOI: 10.1016/j.jad.2021.12.064
关键词
Depression; Sedentary behaviour; Physical activity; Screen time; Distress
资金
- Economic and Social Research Council (ESRC)
- ESRC [ES/P000592/1]
- NHMRC Research Fellowships [1003960, 1078360]
- Victorian Government's Operational Infra-structure Support program
- Wellcome Trust
- UCLH NIHR Biomedical Research Centre
- NIHR Collaboration for Leadership in Applied Health Research and Care North Thames at Bart's Health NHS Trust
This study utilizes compositional data analysis to find that replacing screen time with exercise could reduce adolescent emotional distress. Specifically, replacing television watching and social media use with team sports showed the most significant effects.
Background: Screen-based device use could increase the risk of adolescent depression. Distinct modalities of screen-use may have differential effects on mental health. We used compositional data analysis to examine how theoretically replacing different screen-uses with exercise might influence future adolescent emotional distress. Methods: In 4,599 adolescents (55% female) from a nationally-representative, prospective cohort, we used time-use diary data at age 14 to estimate daily screen use (television, social media, video game, general computer use) and exercise (team sport and individual exercise). The outcome was emotional distress at age 17, assessed using the emotional symptoms subscale of the Strengths and Difficulties Questionnaire. Results: Theoretically replacing 60 min of total screen time with exercise at age 14 was associated with a 0.05 (95%CI-0.08,-0.02) score reduction on the emotional symptoms' subscale at 17 in fully-adjusted models. Replacing 60 min of television or social media use with team sports was associated with a reduction of 0.17 (95% CI, -0.31, -0.04) and 0.15 (95%CI, -0.29, -0.01) in emotional symptom scores, respectively. We found no change in emotional symptom scores when replacing video game or general computer use with team sport, or when replacing any screen time with individual exercise. Limitations: No direct measure of depressive symptoms at follow-up. Conclusions: Replacing any screen time with exercise could reduce emotional distress, but the largest effect sizes were associated with replacing time in television watching and social media with team sports. Recommendations to limit screen-use in adolescents may require a nuanced approach for protecting mental health.
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