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2020 ; 8
(8
): e1018-e1026
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English Wikipedia
Ethnic and regional variations in hospital mortality from COVID-19 in Brazil: a
cross-sectional observational study
#MMPMID32622400
Baqui P
; Bica I
; Marra V
; Ercole A
; van der Schaar M
Lancet Glob Health
2020[Aug]; 8
(8
): e1018-e1026
PMID32622400
show ga
BACKGROUND: Brazil ranks second worldwide in total number of COVID-19 cases and
deaths. Understanding the possible socioeconomic and ethnic health inequities is
particularly important given the diverse population and fragile political and
economic situation. We aimed to characterise the COVID-19 pandemic in Brazil and
assess variations in mortality according to region, ethnicity, comorbidities, and
symptoms. METHODS: We conducted a cross-sectional observational study of COVID-19
hospital mortality using data from the SIVEP-Gripe (Sistema de Informação de
Vigilância Epidemiológica da Gripe) dataset to characterise the COVID-19 pandemic
in Brazil. In the study, we included hospitalised patients who had a positive
RT-PCR test for severe acute respiratory syndrome coronavirus 2 and who had
ethnicity information in the dataset. Ethnicity of participants was classified
according to the five categories used by the Brazilian Institute of Geography and
Statistics: Branco (White), Preto (Black), Amarelo (East Asian), Indígeno
(Indigenous), or Pardo (mixed ethnicity). We assessed regional variations in
patients with COVID-19 admitted to hospital by state and by two socioeconomically
grouped regions (north and central-south). We used mixed-effects Cox regression
survival analysis to estimate the effects of ethnicity and comorbidity at an
individual level in the context of regional variation. FINDINGS: Of 99?557
patients in the SIVEP-Gripe dataset, we included 11?321 patients in our study.
9278 (82·0%) of these patients were from the central-south region, and 2043
(18·0%) were from the north region. Compared with White Brazilians, Pardo and
Black Brazilians with COVID-19 who were admitted to hospital had significantly
higher risk of mortality (hazard ratio [HR] 1·45, 95% CI 1·33-1·58 for Pardo
Brazilians; 1·32, 1·15-1·52 for Black Brazilians). Pardo ethnicity was the second
most important risk factor (after age) for death. Comorbidities were more common
in Brazilians admitted to hospital in the north region than in the central-south,
with similar proportions between the various ethnic groups. States in the north
had higher HRs compared with those of the central-south, except for Rio de
Janeiro, which had a much higher HR than that of the other central-south states.
INTERPRETATION: We found evidence of two distinct but associated effects:
increased mortality in the north region (regional effect) and in the Pardo and
Black populations (ethnicity effect). We speculate that the regional effect is
driven by increasing comorbidity burden in regions with lower levels of
socioeconomic development. The ethnicity effect might be related to differences
in susceptibility to COVID-19 and access to health care (including intensive
care) across ethnicities. Our analysis supports an urgent effort on the part of
Brazilian authorities to consider how the national response to COVID-19 can
better protect Pardo and Black Brazilians, as well as the population of poorer
states, from their higher risk of dying of COVID-19. FUNDING: None.