Efectividad de una intervención en educación alimentaria y actividad física para prevenir obesidad en escolares de la ciudad de Casablanca, Chile (2003-2004)
Autor: | Kain B, Juliana, Uauy D, Ricardo, Leyton D, Bárbara, Ricardo Cerda, Olivares C, Sonia, Vio D, Fernando |
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Zdroj: | ResearcherID Revista médica de Chile v.136 n.1 2008 SciELO Chile CONICYT Chile instacron:CONICYT |
Popis: | Background: With the aim of contributing to he Healthy Goal 2010 of reducing significantly the prevalence of childhood obestiy we developed and implemented during 2003 and 2004, a school-based obesity prevention intervention which included nutrition education and the promotion of physical activity. Aim To report the results of the intervention. Material and methods: The sample included 1760 children (1st to 7th grade) from 3 elementary public schools in Casablanca (experimental group) and 671 from a similar school located in Quillota, a neighboring city (control). Primary outcomes were body mass index (BMI) Zscore, the mile and shuttle-run tests and obesity prevalence. We also compared changes in waist circumference and triceps skinfold between both groups. Effectiveness of the intervention was assessed by analyzing separately the group *age* time interaction for the first 3 outcomes (follow-up-baseline), using a mixed model of covariance and by comparing variations in obesity prevalence between both groups. Results: There was a significant decline in BMI Z scores in experimental schools for both genders, but greater in boys (p |
Databáze: | OpenAIRE |
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