The association between daily-diagnosed COVID-19 morbidity and short-term exposure to PM₁ is larger than associations with PM_2.5 and PM₁₀.

ABSTRACT: Exposure to particulate matter (PM) could increase both susceptibility to SARS-CoV-2 infection and severity of COVID-19 disease. Prior studies investigating associations between PM and COVID-19 morbidity have only considered PM_2.5 or PM₁₀, rather than PM₁. We investigated the associations between daily-diagnosed COVID-19 morbidity and average exposures to ambient PM₁ starting at 0 through 21 days before the day of diagnosis in 12 cities in China using a two-step analysis: a time-series quasi-Poisson analysis to analyze the associations in each city; and then a meta-analysis to estimate the overall association. Diagnosed morbidities and PM₁ data were obtained from National Health Commission in China and China Meteorological Administrati

SUBMITTER: Xiong J 

PROVIDER: S-EPMC8865934 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature