Overweight and obesity of children in a brazilian elementary school: a comparison of three references J Hum Growth Dev. 2016; 26(3): 341-344 Overweight and obesity of children in a brazilian elementary school: a comparison of three references Abstract:Introduction: In the diagnosis of overweight and obesity based on body mass index in children and adolescents, several national and international anthropometric references are recommended. However, there is a divergence in the estimated prevalence of overweight and obesity among the references.