Journal
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
Volume 50, Issue 3, Pages 732-742Publisher
OXFORD UNIV PRESS
DOI: 10.1093/ije/dyab022
Keywords
COVID-19; mortality; social determinants of health; race factors
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This study revealed significant social inequalities in COVID-19 mortality in Sao Paulo, Brazil, including disparities based on gender, race, income, and education level. All socio-economic indicators showed that lower education, more household crowding, lower income, and a higher concentration of subnormal areas were associated with higher mortality rates.
Background: Heterogeneity in COVID-19 morbidity and mortality is often associated with a country's health-services structure and social inequality. This study aimed to characterize social inequalities in COVID-19 mortality in Sao Paulo, the most populous city in Brazil and Latin America. Methods: We conducted a population-based study, including COVID-19 deaths among Sao Paulo residents from March to September 2020. Age-standardized mortality rates and unadjusted rate ratios (RRs) [with corresponding 95% confidence intervals (CIs)] were estimated by race, sex, age group, district of residence, household crowding, educational attainment, income level and percentage of households in subnormal areas in each district. Time trends in mortality were assessed using the Joinpoint model. Results: Males presented an 84% increase in COVID-19 mortality compared with females (RR = 1.84, 95% CI 1.79-1.90). Higher mortality rates were observed for Blacks (RR = 1.77, 95% CI 1.67-1.88) and mixed (RR = 1.42, 95% CI 1.37-1.47) compared with Whites, whereas lower mortality was noted for Asians (RR = 0.63, 95% CI 0.58-0.68). A positive gradient was found for all socio-economic indicators, i.e. increases in disparities denoted by less education, more household crowding, lower income and a higher concentration of subnormal areas were associated with higher mortality rates. A decrease in mortality over time was observed in all racial groups, but it started earlier among Whites and Asians. Conclusion: Our results reveal striking social inequalities in COVID-19 mortality in Sao Paulo, exposing structural inequities in Brazilian society that were not addressed by the governmental response to COVID-19. Without an equitable response, COVID-19 will further exacerbate current social inequalities in Sao Paulo.
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