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Early Evidence of Disparities in COVID-19 Testing in US Cities
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Early Evidence of Disparities in COVID-19 Testing in US Cities

Usama Bilal, Sharrelle Barber and Ana V. Diez-Roux
06 May 2020
url
https://doi.org/10.1101/2020.05.01.20087833View
SubmittedCC BY V4.0 Open

Abstract

We explored the emergence of disparities in COVID-19 testing and outcomes in NYC and Philadelphia, two large US cities at two different stages of the epidemic. We used zip code-level data from the NYC Department of Health and Mental Hygiene and the Philadelphia Department of Public Health. We linked this data to a deprivation index calculated using 2014-2018 American Community Survey data. We have documented a dynamic situation regarding disparities in COVID-19 testing in two US cities. There are wide disparities in testing availability for the most deprived neighborhoods in Philadelphia, a city early in the epidemic, while these disparities seemingly dissipated in NYC, a city with more widespread testing later in the epidemic. However, we consistently see a very strong positive correlation with the % of tests that are positive in both cities, and this disparity is widening over time.

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