Overweight and obesity in children aged six to nine years: World Health Organization reference curves
Abstract
Introduction: The occurrence of overweight has increased in recent decades among children and adolescents from various regions of the world. The health damage that overweight and obesity entails, increase the importance of diagnosis in young people. Objective: To construct and compare a specific body mass index (BMI) curve for children aged six to nine years with the normative values of the World Health Organization of 2007 and to show nutritional diagnosis by classifying the percentiles. Materials and Methods: Non-probabilistic cross-sectional study for convenience. The sample consisted of 800 children with simple randomized pairing by sex, performed in Porto Velho-RO, 2018. Weight and height measurements were performed to calculate BMI (kg/m2). The LMS method was used to construct the curves. Results: I) Most children in the male group presented values in each percentile higher than the female group. II) The prevalence of obesity was higher in boys at all ages from six to nine years. III) Bmi percentiles for children aged six to nine years showed higher normative values for both sexes from the P50 percentile when viewed with the world health organization reference percentiles of 2007. Conclusion: Boys from six to nine years of age were more overweight than girls. Therefore, local, and population-specific BMI curves should be developed to assess the growth of children.
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Copyright (c) 2025 Manuela Havena Rosendo Lopes, Flavio Yoshio Nanami, Josivana Pontes dos Santos, Edson dos Santos Farias
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