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1篇 您的检索式：作者名="Congyuan Duan"

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		题名	作者	年代	出处	被引量
	1	Risk factors associated with mortality of COVID-19 in 3125 counties of the United States显示文摘Background:The number of cumulative confirmed cases of COVID-19 in the United States has risen sharply since March 2020.A county health ranking and roadmaps program has been established to identify factors associated with disparity in mobility and mortality of COVID-19 in all counties in the United States.The risk factors associated with county-level mortality of COVID-19 with various levels of prevaIence are not well understood.Methods:Using the data obtained from the County Health Rankings and Roadmaps program,this study applied a negative binomial design to the courtty-level mortality counts of COVID-19 as of August 27,2020 in the United States.In this design,the infected counties were categorized into three levels of infections using clustering analysis based on time-var ying cumulative con firmed cases from March 1 to August 27,2020.COVID-19 patients were not analyzed in dividually but were aggregated at the county-level,where the coun ty-level deaths of COVID-19 con firmed by the local health agencies.Clustering analysis and Kruskal-Wallis tests were used in our statistical analysis.	Ting Tian Jingwen Zhang Liyuan Hu Yukang Jiang Congyuan Duan Zhongfei Li Xueqin Wang Heping Zhang	2021	Infectious Diseases of Poverty2021，10，1：	0

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