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Social vulnerability index associated with higher COVID-19 seroprevalence in Nigeria.

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  • Additional Information
    • Corporate Authors:
    • Source:
      Publisher: Taylor & Francis Country of Publication: United States NLM ID: 101496665 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1654-9880 (Electronic) Linking ISSN: 16549880 NLM ISO Abbreviation: Glob Health Action Subsets: MEDLINE
    • Publication Information:
      Publication: <2016- > : Philadelphia, PA : Taylor & Francis
      Original Publication: Häggeby : Co-Action Publishing
    • Subject Terms:
    • Abstract:
      Social vulnerability has been shown to be a strong predictor of disparities in health outcomes. A common approach to estimating social vulnerability is using a composite index, such as the social vulnerability index (SVI), which combines multiple factors corresponding to key social determinants of health. Lawal and Osayomi created an SVI to explore key social determinants of health-related COVID-19 infection among the Nigerian population. This study explored the association of COVID-19 SVI with COVID-19 seroprevalence using a large household survey in Nigeria. Weighted COVID-19 seroprevalence estimates at the Local Government Areas (LGA) were estimated and merged with the Lawal and Osayomi SVI, also at the LGA-level. Linear regression models were constructed to evaluate the relationship between the SVI and COVID-19 seroprevalence. The effect of SVI was evaluated both as a continuous variable and categorized into quintiles to evaluate dose-response effects. Our results confirmed a positive relationship between social vulnerability and COVID-19 infection in four states and the Federal Capital Territory in Nigeria. Compared to class 1 (the least vulnerable group), COVID-19 seroprevalence was, on average, 9.21% and 6.42% higher in classes 4 and 5 LGAs, respectively, after adjustment by phase of the survey. The effect was particularly strong farther into the pandemic (June 2021), when COVID-19 mitigation measures were relaxed. In conclusion, SVI can potentially be a useful tool to effectively prioritize communities for resource allocation as part of emergency response and preparedness in Africa.
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    • Grant Information:
      U54 TW012041 United States TW FIC NIH HHS
    • Contributed Indexing:
      Keywords: COVID-19; Nigeria; Social vulnerability index; seroprevalence; social determinants
      Local Abstract: [plain-language-summary] Main findings: A direct association between social vulnerability and COVID-19 infection was observed in four states and the Federal Capital Territory in Nigeria, particularly later in the pandemic when COVID-19 restrictive measures have been relaxed. Added knowledge: Our findings add to the limited literature describing this association in Africa, particularly in Nigeria, and using a more robust and representative large household COVID-19 seroprevalence survey. Global health impact for policy and action: Our findings suggest the need for developing and using social vulnerability indexes in Africa to inform decision and policy making when prioritizing communities for resource allocation as part of emergency response and preparedness.
    • Publication Date:
      Date Created: 20250121 Date Completed: 20250502 Latest Revision: 20250502
    • Publication Date:
      20250503
    • Accession Number:
      PMC11753008
    • Accession Number:
      10.1080/16549716.2024.2446043
    • Accession Number:
      39834339