3.8 Article

Time varying association between deprivation, ethnicity and SARS-CoV-2 infections in England: A population-based ecological study

Journal

LANCET REGIONAL HEALTH-EUROPE
Volume 15, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.lanepe.2022.100322

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Funding

  1. EPSRC
  2. MRC
  3. Alan Turing Institute
  4. UKHSA
  5. DHSC
  6. NIH

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Deprivation and proportion of non-White populations are both associated with increased COVID-19 burden, but the impact varies over the course of the pandemic and for different ethnic subgroups. The results suggest that deprivation and ethnicity may affect disease exposure or susceptibility rather than testing access and habits.
Background: Ethnically diverse and socio-economically deprived communities have been differentially affected by the COVID-19 pandemic in the UK. Method: Using a multilevel regression model we assessed the time-varying association between SARS-CoV-2 infections and areal level deprivation and ethnicity from 1st of June 2020 to the 19th of September 2021. We separately considered weekly test positivity rate and estimated debiased prevalence at the Lower Tier Local Authority (LTLA) level, adjusting for confounders and spatio-temporal correlation structure. Findings: Comparing the least deprived and predominantly White areas with most deprived and predominantly non-White areas over the whole study period, the weekly positivity rate increases from 2.977% (95% CrI 2.913%-3.029%) to 3.347% (95% CrI 3.300%-3.402%). Similarly, prevalence increases from 0.369% (95% CrI 0.361%-0.375%) to 0.405% (95% CrI 0.399%-0.412%). Deprivation has a stronger effect until October 2020, while the effect of ethnicity becomes more pronounced at the peak of the second wave and then again in May-June 2021. In the second wave of the pandemic, LTLAs with large South Asian populations were the most affected, whereas areas with large Black populations did not show increased values for either outcome during the entire period under analysis. Interpretation: Deprivation and proportion of non-White populations are both associated with an increased COVID-19 burden in terms of disease spread and monitoring, but the strength of association varies over the course of the pandemic and for different ethnic subgroups. The consistency of results across the two outcomes suggests that deprivation and ethnicity have a differential impact on disease exposure or susceptibility rather than testing access and habits. Copyright (C) 2022 The Authors. Published by Elsevier Ltd.

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