id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-322838-s82tyeis	Norden, M. J.	National Smoking Rates Correlate Inversely with COVID-19 Mortality	2020-06-14		.txt	text/plain	5296	309	52	Results: A highly significant inverse correlation between current daily smoking prevalence and COVID-19 mortality rate was noted for the group of hot countries (R=-.718, p = .0002), cold countries (R=-.567, p=.0046), and the combined group (R=-.324, p=.0207). Correlations and scatterplots between national smoking prevalence and COVID-19 mortality rates in each of the three groups of countries can be seen below in Figure 1 To test whether any outliers may be driving the results we performed post-hoc analyses removing Sweden and Korea both individually and together. . https://doi.org/10.1101/2020.06.12.20129825 doi: medRxiv preprint DISCUSSION A significant inverse correlation of smoking prevalence and COVID-19 mortality rate was found for the subgroups of hot and cold countries, and for the combined subgroups. The primary strength of the current study is that it shows a strong inverse association between COVID-19 mortality and daily smoking prevalence not subject to the many confounds identified in previous studies reporting under-representation of smokers among COVID-19 patients.	./cache/cord-322838-s82tyeis.txt	./txt/cord-322838-s82tyeis.txt