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County-level societal predictors of COVID-19 cases and deaths changed through time in the United States: A longitudinal ecological study.
Bergmann, Philip J; Ahlgren, Nathan A; Torres Stone, Rosalie A.
  • Bergmann PJ; Department of Biology, Clark University, Worcester, MA, United States of America.
  • Ahlgren NA; Department of Biology, Clark University, Worcester, MA, United States of America.
  • Torres Stone RA; Department of Sociology, Clark University, Worcester, MA, United States of America.
PLOS Glob Public Health ; 2(11): e0001282, 2022.
Article in English | MEDLINE | ID: covidwho-2196837
ABSTRACT
People of different racial/ethnic backgrounds, demographics, health, and socioeconomic characteristics have experienced disproportionate rates of infection and death due to COVID-19. This study tests if and how county-level rates of infection and death have changed in relation to societal county characteristics through time as the pandemic progressed. This longitudinal study sampled monthly county-level COVID-19 case and death data per 100,000 residents from April 2020 to March 2022, and studied the relationships of these variables with racial/ethnic, demographic, health, and socioeconomic characteristics for 3125 or 97.0% of U.S. counties, accounting for 96.4% of the U.S. population. The association of all county-level characteristics with COVID-19 case and death rates changed significantly through time, and showed different patterns. For example, counties with higher population proportions of Black, Native American, foreign-born non-citizen, elderly residents, households in poverty, or higher income inequality suffered disproportionately higher COVID-19 case and death rates at the beginning of the pandemic, followed by reversed, attenuated or fluctuating patterns, depending on the variable. Patterns for counties with higher White versus Black population proportions showed somewhat inverse patterns. Counties with higher female population proportions initially had lower case rates but higher death rates, and case and death rates become more coupled and fluctuated later in the pandemic. Counties with higher population densities had fluctuating case and death rates, with peaks coinciding with new variants of COVID-19. Counties with a greater proportion of university-educated residents had lower case and death rates throughout the pandemic, although the strength of this relationship fluctuated through time. This research clearly shows that how different segments of society are affected by a pandemic changes through time. Therefore, targeted policies and interventions that change as a pandemic unfolds are necessary to mitigate its disproportionate effects on vulnerable populations, particularly during the first six months of a pandemic.

Full text: Available Collection: International databases Database: MEDLINE Type of study: Cohort study / Observational study / Prognostic study Topics: Variants Language: English Journal: PLOS Glob Public Health Year: 2022 Document Type: Article Affiliation country: Journal.pgph.0001282

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Cohort study / Observational study / Prognostic study Topics: Variants Language: English Journal: PLOS Glob Public Health Year: 2022 Document Type: Article Affiliation country: Journal.pgph.0001282