Distribution of COVID-19 cases and health resources in Brazil’s Amazon region: a spatial analysis

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Spatial analysis can help measure the spatial accessibility of health services with a view to improving the allocation of health care resources. The objective of this study was to analyze the spatial distribution of COVID-19 detection rates and health care resources in Brazil’s Amazon region. We conducted an ecological study using data on COVID-19 cases and the availability of health care resources in 772 municipalities during two waves of the pandemic. Local and global Bayesian estimation were used to construct choropleth maps. Moran’s I was calculated to detect the presence of spatial dependence and Moran maps were used to identify disease clusters. In both periods, Moran’s I values indicate the presence of positive spatial autocorrelation in distributions and spatial dependence between municipalities, with only a slight difference between the two estimators. The findings also reveal that case rates were highest in the states of Amapá, Amazonas, and Roraima. The data suggest that health care resources were inefficiently allocated, with higher concentrations of ventilators and ICU beds being found in state capitals.




Rezende, A. A. B., da Silva, R. P., Pedrosa, N. L., da Luz, R. A., da Paixão, A. N., Rodrigues, W., … de Rezende Campos, A. (2023). Distribution of COVID-19 cases and health resources in Brazil’s Amazon region: a spatial analysis. Ciencia e Saude Coletiva, 28(1), 131–141. https://doi.org/10.1590/1413-81232023281.10782022

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