ArticleBMC public health2025
Screen-based sedentary behavior and BMI among Chinese adolescents: weight concern as a mediator moderated by body image perception.
Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
What it found
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A Systematic Review of Screen Time and Obesity in Children, Adolescents, and Young Adults: Sex-Specific Pathways and Implications for Public Health Interventions.Preventing chronic disease · 2026Pooled it
- Social Media Addiction and Orthorexia Nervosa Tendencies in Turkish Adults: A Cross-Sectional Study of BMI and Lifestyle Factors.Behavioral sciences (Basel, Switzerland) · 2026Article
- Association Between Sleep Duration, Screen-Based Sedentary Time, and Weight Status Among Chinese Adolescents.Healthcare (Basel, Switzerland) · 2025Article
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Authors and funding
10 authors.
Funding
Abstract
objectiveScreen-based sedentary behavior (SB) is associated with elevated BMI; however, the underlying mechanisms remain poorly understood. This study investigates the mediating role of weight concern in the SB-BMI relationship and examines how body image perception and gender moderate this mediation. By focusing on body image as a critical contextual factor, the study aims to inform targeted interventions for adolescent obesity and overweight.
methodsIn 2016, self-report questionnaires assessing screen-based SB, weight concern, and body image perception were collected from 508 Chinese adolescents (grades 7-9), yielding 438 valid responses (response rate: 86.22%). Path analysis and bootstrap procedures with bias-corrected 95% confidence intervals were used for data analysis.
resultsScreen-based SB was positively associated with weight concern (b = 1.115, p = 0.009) and BMI (b = 0.183, p < 0.001). The mediation analysis showed that weight concern partially mediated this relationship, with an indirect effect of 0.056 (95% CI = [0.006, 0.114]). This mediation was moderated by body image perception and gender. Specifically, the interaction between BMI overestimation and weight concern was negatively associated with BMI (b=-0.157, p = 0.011), whereas the three-way interaction of gender, weight concern, and overestimated body image perception showed a positive association with BMI (b = 0.080, p = 0.025).
conclusionsScreen-based SB influences BMI, with weight concern as a mediator and body image perception and gender as moderators. These findings highlight the importance of targeting sedentary behavior and body image concerns in gender-sensitive interventions for adolescents.
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