• Graciele Sbruzzi, Bruna Eibel, Sandra M Barbiero, Rosemary O Petkowicz, Rodrigo A Ribeiro, Claudia C Cesa, Carla C Martins, Roberta Marobin, Camila W Schaan, Willian B Souza, Beatriz D Schaan, and Lucia C Pellanda.
• Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Porto Alegre, Brazil.
• Prev Med. 2013 May 1; 56 (5): 254-64.

ObjectiveTo assess the effectiveness of educational interventions including behavioral modification, nutrition and physical activity to prevent or treat childhood obesity through a systematic review and meta-analysis of randomized trials.MethodA search of databases (PubMed, EMBASE and Cochrane CENTRAL) and references of published studies (from inception until May 2012) was conducted. Eligible studies were randomized trials enrolling children 6 to 12 years old and assessing the impact of educational interventions during 6 months or longer on waist circumference, body mass index (BMI), blood pressure and lipid profile to prevent or treat childhood obesity. Calculations were performed using a random effects method and pooled-effect estimates were obtained using the final values.ResultsOf 22.852 articles retrieved, 26 trials (23.617 participants) were included. There were no differences in outcomes assessed in prevention studies. However, in treatment studies, educational interventions were associated with a significant reduction in waist circumference [-3.21 cm (95%CI -6.34, -0.07)], BMI [-0.86 kg/m(2) (95%CI -1.59, -0.14)] and diastolic blood pressure [-3.68 mmHg (95%CI -5.48, -1.88)].ConclusionsEducational interventions are effective in treatment, but not prevention, of childhood obesity and its consequences.Copyright © 2013 Elsevier Inc. All rights reserved.

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