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Changes in BMI and blood pressure after a school based intervention: the CHILDREN study
P D Angelopoulos1, H J Milionis, E Grammatikaki
1Department of Pathophysiology, School of Medicine, University of Athens, Greece.
European Journal of Public Health
|February 12, 2009
Summary
A school-based intervention using the Theory of Planned Behaviour (TPB) improved children's diet, reduced obesity indices, and lowered blood pressure (BP). This highlights the importance of supportive environments for healthy eating and physical activity.
Area of Science:
- Public Health
- Pediatrics
- Behavioral Science
Background:
- Identifying beliefs influencing children's behavior is crucial for effective interventions.
- Childhood obesity and elevated blood pressure (BP) are significant public health concerns.
- The Theory of Planned Behaviour (TPB) provides a framework for understanding and modifying health behaviors.
Purpose of the Study:
- To evaluate a school-based intervention program's effectiveness on obesity indices and BP in children.
- To apply the Theory of Planned Behaviour (TPB) principles to promote healthier lifestyles.
- To assess the impact of TPB-based interventions on children's health outcomes in Ioannina, Greece.
Main Methods:
- A 1-year school-based intervention program was implemented.
- Participants included 646 fifth-grade pupils, randomly assigned to intervention (IG) or control (CG) groups.
- Statistical analyses included general linear mixed models and mediating variable analysis to assess intervention effects on BP and obesity indices.
Main Results:
- The intervention group (IG) showed increased fruit consumption and decreased intake of fats/oils and sweets/beverages compared to the control group (CG).
- Changes in fruit and fats/oils intake mediated the intervention's effect on Body Mass Index (BMI).
- Reductions in BMI mediated the observed decreases in systolic and diastolic blood pressure (BP).
Conclusions:
- The TPB-based intervention led to favorable changes in children's BP and obesity indices.
- Creating supportive social and physical environments is vital for promoting balanced eating and physical activity.
- School-based interventions grounded in behavioral theories can effectively improve child health outcomes.
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