id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-344008-h4kc04w0	Liang, Donghai	Urban Air Pollution May Enhance COVID-19 Case-Fatality and Mortality Rates in the United States	2020-09-21		.txt	text/plain	5751	221	41	We used both single and multipollutant models and controlled for spatial trends and a comprehensive set of potential confounders, including state-level test positive rate, county-level healthcare capacity, phase-of-epidemic, population mobility, population density, sociodemographics, socioeconomic status, race and ethnicity, behavioral risk factors, and meteorology. To address these analytical gaps and contribute towards a more complete understanding of the impact of long-term exposures to ambient air pollution on COVID-19-related health consequences, we conducted a nationwide study in the USA (3,122 counties) examining associations between multiple key ambient air pollutants, NO 2 , PM 2.5 , and O 3 , and COVID-19 case-fatality and mortality rates in both single and multi-pollutant models, with J o u r n a l P r e -p r o o f comprehensive covariate adjustment. We hypothesized that residents living in counties with higher long-term ambient air pollution levels may be more susceptible to COVID-19 severe outcomes, thus resulting in higher COVID-19 case-fatality rates and mortality rates.	./cache/cord-344008-h4kc04w0.txt	./txt/cord-344008-h4kc04w0.txt