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Open Access Study protocol

A cluster randomized trial to evaluate the efficacy of a school-based behavioral intervention for health promotion among children aged 3 to 5

José L Peñalvo1*, Gloria Santos-Beneit12, Mercedes Sotos-Prieto12, Ramona Martínez2, Carla Rodríguez2, Manuel Franco134, Pedro López-Romero1, Stuart Pocock15, Juliana Redondo1 and Valentín Fuster16

Author Affiliations

1 Department of Epidemiology, Atherothrombosis and Imaging, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, 28029, Spain

2 International SHE Foundation, Barcelona, Spain

3 Division of Epidemiology and Public Health, Universidad de Alcalá, Madrid, Spain

4 Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA

5 Department of Medical Statistics, London School of Hygiene and Tropical Medicine, London, UK

6 Department of Cardiology, Mount Sinai School of Medicine, New York, NY, USA

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BMC Public Health 2013, 13:656  doi:10.1186/1471-2458-13-656

Published: 15 July 2013

Abstract

Background

The onset of inadequate behaviors leading to the development of risk factors for chronic diseases is known to occur early in life. An effective program for health promotion should therefore focus on children and their environment, as the starting point for behavior development. The overarching objective of the Program SI! (Salud Integral - Comprehensive Health) is to intervene at the school level, to establish and develop life-lasting habits that will help preserving health during adulthood. The Program SI! comprises five consecutive subprograms according to the five stages of education in Spain, the first being in preschoolers. This study aims to evaluate the efficacy of Program SI! to establish and improve lifestyle behaviors in children (preschoolers aged 3–5 years), their parents, and teachers, and also improving the school environment. A secondary objective is to evaluate improvements in cardiovascular health-related markers (anthropometric parameters, blood pressure, and dietary and physical activity patterns) in these same children.

Methods/design

24 public schools from the city of Madrid (Spain) were allocated through stratified randomization to intervention or control. The intervention schools follow the Program SI!, which provides didactic units, emotions cards, healthy tips, and online resources. The intervention schools integrate the Program SI! into their scholar curriculum organized in four complete weeks during each academic year during the 3 years of preschool education. Control schools follow their normal curriculum. Primary outcomes are 1-year, and 3-year changes from baseline of scores for knowledge, attitudes, and habits (KAH) of children, their parents and teachers in regards to a healthy lifestyle. Secondary outcomes are 1-year, and 3-year changes from baseline in clinical and anthropometric parameters of children.

Discussion

The Program SI! is a long-term health promotion program starting in 3 years old. It incorporates the traditional areas of intervention (diet and physical activity), introducing additional components such as knowledge of the human body and management of emotions to achieve a comprehensive intervention. The Program SI! is designed to be an effective, sustainable health promotion program for the adoption of healthy behaviors from early in life.

Trial registration

Trial registration number: NCT01579708

Keywords:
Comprehensive health; School-based intervention; Lifestyle; Behavior