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The school environment plays an important role in the eating patterns of students. The quality of food available in the school vicinities can influence the health and diet outcomes of this population. The study aims to analyze the food environment in the school vicinity of the city of Sao Paulo, focusing on stores selling ultra-processed products. The association between presence and characteristics of schools and density of stores will be investigated. Schools information was obtained from the 2016 School Census, provided by the National Institute of Educational Studies and Research Anísio Teixeira (INEP). The 2016 Annual Social Information List (RAIS) database was used to characterize the school vicinity. Eleven types of stores selling ultra-processed products were identified through the National Classification of Economic Activities (CNAE). Initially, schools and stores were georeferenced by the Postal Address Code in the city street map; this information was attached to the Human Development Units (UDH). Descriptive analyzes (absolute numbers and density per 10.000 inhabitants) were carried out to investigate the distribution of food stores by each category of Municipal Human Development Index (IDHM) present in the city. The influence of the schools on the presence of stores was verified by comparing stores densities in areas with and without schools, considering IDHM categories. The results show that food stores densities are smaller in areas with lower IDHM (8.79/10.000 inhabitants) and bigger in areas with higher IDHM (79.19/10.000 inhabitants). Comparing areas with and without schools, areas with schools present higher food stores densities in every category of IDHM. Furthermore, the study results are relevant and necessary to fill gaps in current literature and may support the formulation of recommendations and intervention proposals for promoting healthy food environments for children and adolescents. Key messages The results assist in the understanding of how different determinants can modulate food choices and practices of children and adolescents. Food environments investigations and monitoring provide important subsidies for designing and directing accurate public policies that promote healthier food environments and choices.

The food environment in school’s vicinities of Sao Paulo, Brazil