Overweight and Obesity Behavior in Mexican School-Age Children Attending to Public Elementary Schools During 2015 to 2018 Period

OBJECTIVES: To document the behavior of overweight and obesity among school-age population, that attends to public elementary schools through four consecutive school years. METHODS: An epidemiological, descriptive study, that consisted on four transversal yearly and consecutive stages from August 2015 to December 2018. Applied a Generalized Ordinal Logistic Regression model and the relative risk (RR) calculation. Country region, rural or urban locality and marginalization index (MI) of the school were used as socio demographic variables. Overweight and obesity prevalences where adjusted through the marginal probabilities estimators. The databases used were the public versions of the results of the National Weight and Height Registry (Registro Nacional de Peso y Talla in Spanish) from the Mexico National Nutrition Institute. RESULTS: A total of 59,724 schools were evaluated from which 17’491,685 anthropometries were obtained for the four school years. Regarding RR evaluation, from the regression model we were able to identify statistically significant differences (P