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Screen Time Increases Overweight and Obesity Risk Among Adolescents: A Systematic Review and Dose-Response Meta-Analysis Publisher Pubmed



Haghjoo P1 ; Siri G2 ; Soleimani E3 ; Farhangi MA4 ; Alesaeidi S5
Authors
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Authors Affiliations
  1. 1. Urology Research Center, Razi Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
  2. 2. Department of Internal Medicine, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
  4. 4. Department of Community Nutrition, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
  5. 5. Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran

Source: BMC Primary Care Published:2022


Abstract

Background: Adolescence is a critical period in human life, associated with reduced physical activity and increased sedentary behaviors. In this systematic review and dose-response meta-analysis, we evaluated the association between screen time and risk of overweight/obesity among adolescents. Methods: A systematic search in electronic databases, including PubMed, Embase, and Scopus was performed up to September 2021. All published studies evaluating the association between screen time and risk of overweight/obesity among adolescents were retrieved. Finally, a total of 44 eligible studies were included in the meta-analysis. Results: The results of the two-class meta-analysis showed that adolescents at the highest category of screen time were 1.27 times more likely to develop overweight/obesity (OR = 1.273; 95% CI = 1.166–1.390; P < 0.001; I-squared (variation in ES attributable to heterogeneity) = 82.1%). The results of subgrouping showed that continent and setting were the possible sources of heterogeneity. Moreover, no evidence of non-linear association between increased screen time and risk of overweight/obesity among adolescents was observed (P-nonlinearity = 0.311). Conclusion: For the first time, the current systematic review and meta-analysis revealed a positive association between screen time and overweight/obesity among adolescents without any dose-response evidence. Trial registration: The protocol of the current work has been registered in the PROSPERO system (Registration number: CRD42021233899). © 2022, The Author(s).
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