Background Previous research suggests that unhealthy community food environments around schools contribute to unhealthy eating habits and negative health outcomes among the youth. However, little is known about how socioeconomic inequalities in those community food environments are associated with food deserts and food swamps across schools’ neighborhoods. Methods An ecological study was carried out in all 3,159 public and private schools in Rio de Janeiro, Brazil. Three measures of socioeconomic inequality were evaluated: per capita income, segregation index and deprivation index. The community school food environment was analyzed by metrics of food swamps and food deserts. Results Food deserts and food swamps were simultaneously more prevalent in neighborhoods of the lowest income, high deprivation, and high segregation. Spatial socioeconomic disparities at the neighborhoods of schools were associated with food deserts and food swamps in Rio de Janeiro. Conclusions Our results point to a spatial socioeconomic inequality of establishments that sell food around schools in a Brazilian metropolis, indicating that the areas of greatest deprivation of food services are also the areas with the worst socioeconomic characteristics.

and the associated factors among Brazilian adolescents. Methods: Cross-sectional study with data from the Study of Cardiovascular Risks in Adolescents conducted in 2013-2014, with 58,707 adolescents aged 12 to 17 years-old who attended public schools. Logistic regression models were stratified by sex and the significance level of 5% was adopted for all analyses. Results: There was low adherence to school meals (17.2%). The chance of regular consumption of school meals was higher among male adolescents belonging to the medium (p<0.05) and the low (p<0.05) socioeconomic score categories. For females, the chance of regular consumption of food offered at school was higher among black-skinned, brownskinned, indigenous-skinned or yellow-skinned adolescents (p<0.05), aged 16 and 17 (p<0.05), who worked (p<0.001) and belonged to the medium (p<0.05) and low (p<0.05) socioeconomic score categories. The regular purchase of food in school cafeterias reduced the chance of regular consumption of school meals for males (p<0.001) and females (p<0.001). Conclusions: Adherence to the food offered by the PNAE is far from ideal, and it is important to create public policies that encourage the consumption of school meals and improve adherence. In addition, the strengthening and drafting of regulations aimed at the sale of food in the interior and surrounding schools' areas is necessary.

Background Food deserts are neighborhoods with little or no access to healthy food, whereas food swamps are neighborhoods where unhealthy food options prevail over healthy ones. The main aims of the current study are to feature and compare the neighborhoods of food deserts and food swamps based on social inequality. Methods Ecological study carried out in Belo Horizonte City, Minas Gerais State, Brazil. Information about commercial food establishments derived from two different databases. It was measured by secondary governmental databases, which were virtually conferred in the present study. Census tracts were considered as analysis units and classified as food deserts and food swamps, based on the Brazilian methodology. Take into consideration the density of establishments classified as selling fresh or minimally-processed food, mixed establishments, and establishments selling ultra-processed food. The Brazilian methodology evaluates food deserts by the density of healthy establishments (establishments classified as mostly selling fresh or minimally-processed food and mixed establishments) per 10 thousand inhabitants. And the metric to evaluate food swamps considers the density of unhealthy establishments (establishments mostly selling ultra-processed food) per 10 thousand inhabitants. Information about social inequalities comprised aspects such as income, population count, number of households, number of literate individuals, race, water and energy supply, and garbage collection. The Health Vulnerability Index (HVI) was used as a synthetic social vulnerability indicator. Results Neighborhoods of food deserts presented worse essential service availability, lower income per capita, and smaller mean number of literate individuals. Census tracts classified as food swamps presented better socio-demographic conditions than those areas food deserts. Neighborhoods simultaneously classified as food deserts and food swamps presented lower income per capita and were more often observed in census sectors presenting medium and high HVI. Conclusion The food environment in Belo Horizonte was featured by the strong presence of food deserts and food swamps. However, the potential influence of these areas on food intake has changed depending on social inequalities.

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O objetivo foi avaliar o ambiente alimentar comunitário e a existência de pântanos alimentares no entorno das escolas de uma metrópole brasileira. Trata-se de um estudo ecológico realizado em escolas públicas e privadas de Belo Horizonte, Minas Gerais, Brasil, e teve como unidade de análise o buffer de 250m. Foram incluídas no estudo todas as escolas de Educação Infantil, de Ensinos Fundamental e Médio. Em relação às escolas, foram avaliadas a dependência administrativa e o tipo de ensino ofertado, bem como a renda per capita dos setores censitários das escolas. Contabilizou-se também as informações sobre os estabelecimentos de venda de alimentos para o consumo imediato que estavam dentro do buffer no entorno das escolas. Em relação ao ambiente alimentar foram avaliados apenas os estabelecimentos que comercializam alimentos para o consumo imediato no entorno escolar. A análise dos buffers revelou que 97,4% das escolas tinham ao menos um desses estabelecimentos no seu entorno. Os estabelecimentos mais disponíveis no entorno da escola foram lanchonetes, restaurantes e bares. As escolas localizadas em setores censitários de maior renda apresentavam maior média de todos os estabelecimentos no seu entorno, exceto das mercearias e supermercados. Ademais, 54,6% das escolas estavam em vizinhanças que são classificados como pântanos alimentares. Os resultados revelam que entre as categorias avaliadas ocorre um predomínio dos estabelecimentos que comercializam, predominantemente, alimentos ultraprocessados, como os bares e lanchonetes no entorno das escolas de Belo Horizonte, o que expõe as crianças e os adolescentes a um ambiente alimentar não saudável.