id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-349921-v1tewoi0	Giorgi Rossi, Paolo	Case fatality rate in patients with COVID-19 infection and its relationship with length of follow up()	2020-05-05		.txt	text/plain	655	40	58	title: Case fatality rate in patients with COVID-19 infection and its relationship with length of follow up() In their systematic review on the clinical characteristics of COVID-19, Wu and colleagues report a 3.2% case fatality rate (CFR), ranging from 2% to 4% 1 with strong heterogeneity between studies (I 2 =100%). 2 The authors suggest that higher complication and fatality rate in Wuhan could be due to the limited clinical experience in the initial phase of the epidemic. We report data from the COVID-19 information system set up in Italy by the National Institute of Health and described elsewhere, 5,6 diagnosed from February 20 to March 29 and followed up to April 5 in Emilia-Romagna region (approximately 4.5 million inhabitants). Our data show that, according to the Italian definition of COVID-related death, 5,6 the CFR can reach about 20% if we follow up patients for a long enough time to observe the vast majority of deaths. Case-Fatality Rate and Characteristics of Patients Dying in Relation to COVID-19 in Italy	./cache/cord-349921-v1tewoi0.txt	./txt/cord-349921-v1tewoi0.txt