PropertyValue
?:abstract
  • Prior studies indicate the protective role of Ultraviolet-B (UVB) radiation in human health, mediated by vitamin D synthesis. In this observational study, we empirically outline a negative association of UVB radiation as measured by ultraviolet index (UVI) with the number of COVID-19 deaths. We apply a fixed-effect log-linear regression model to a panel dataset of 152 countries over 108 days (n = 6524). We use the cumulative number of COVID-19 deaths and case-fatality rate (CFR) as the main dependent variables and isolate the UVI effect from potential confounding factors. After controlling for time-constant and time-varying factors, we find that a permanent unit increase in UVI is associated with a 1.2 percentage points decline in daily growth rates of cumulative COVID-19 deaths [p < 0.01] and a 1.0 percentage points decline in the CFR daily growth rate [p < 0.05]. These results represent a significant percentage reduction in terms of daily growth rates of cumulative COVID-19 deaths (− 12%) and CFR (− 38%). We find a significant negative association between UVI and COVID-19 deaths, indicating evidence of the protective role of UVB in mitigating COVID-19 deaths. If confirmed via clinical studies, then the possibility of mitigating COVID-19 deaths via sensible sunlight exposure or vitamin D intervention would be very attractive.
?:creator
?:doi
  • 10.1038/s41598-020-74825-z
?:doi
?:journal
  • Sci_Rep
?:license
  • cc-by
?:pdf_json_files
  • document_parses/pdf_json/e94c261292e5648861a7f656121eff96c40bd7b4.json; document_parses/pdf_json/1aadd8041bb5c2cfa2e0ae7b8d23f17c94d0ff89.json
?:pmc_json_files
  • document_parses/pmc_json/PMC7572372.xml.json
?:pmcid
?:pmid
?:pmid
  • 33077792.0
?:publication_isRelatedTo_Disease
?:sha_id
?:source
  • Medline; PMC
?:title
  • Evidence of protective role of Ultraviolet-B (UVB) radiation in reducing COVID-19 deaths
?:type
?:year
  • 2020-10-19

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