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The aim is to evaluate how a comprehensive intervention impacts family support and mediates changes in children's health behaviors.

January 25, 2026PLoS ONEOpen Access

The effect of comprehensive intervention on family support and the mediating effect between intervention and changes in children’s dietary and physical activity behaviors

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The aim is to evaluate how a comprehensive intervention impacts family support and mediates changes in children's health behaviors.
Conducted a cluster-randomized controlled trial from 2018 to 2019.
Involved 396 students from eight elementary schools in Changzhi City, China.
Collected data on dietary habits, physical activity, and family support through structured questionnaires.
Applied generalized estimating equation models to analyze effects.
The intervention group showed significantly higher family support than the control group (OR = 2.539).
Increases in family support were noted from fathers (OR = 1.910), mothers (OR = 3.624), and grandmothers (OR = 1.289).
Family support partially mediated the link between the intervention and improvements in dietary habits and screen time.

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This cluster-randomized controlled trial assesses family support's mediating role in dietary and physical activity changes among children.

Duan et al. (2026) studied this question.

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This cluster-randomized controlled trial assesses family support's mediating role in dietary and physical activity changes among children.