Initially High Correlation between Air Pollution and COVID-19 Mortality Declined to Zero as the Pandemic Progressed: There Is No Evidence for a Causal Link between Air Pollution and COVID-19 Vulnerability.

Int J Environ Res Public Health · 2022 · PMC9408300 · PMID 36011633

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hedged sentence

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practically significantno p-value reported

The association was statistically and practically significant and stable throughout both the published study period (from 18 April 2002 to 18 June 2020) and in a web-published extension, through 7 September 2020.

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