A systematic review and meta-analysis was conducted in an attempt to systematically collect
and evaluate the associations of epidemiological, comorbidity factors with the severity and …

Abstract Background Recently, Coronavirus Disease 2019 (COVID-19) outbreak started in
Wuhan, China. Although the clinical features of COVID-19 have been reported previously …

Background Mortality rates of coronavirus disease-2019 (COVID-19) continue to rise across
the world. The impact of several risk factors on coronavirus mortality has been previously …

Objectives The main aim of this study was to find the prevalence of mortality among
hospitalized COVID-19 infected patients and associated risk factors for death. Methods …

Objective We aimed to systematically identify the possible risk factors responsible for severe
cases. Methods We searched PubMed, Embase, Web of science and Cochrane Library for …

Background and objectives With the increase in the number of COVID-19 infections, the
global health apparatus is facing insufficient resources. The main objective of the current …

Purpose Severe acute respiratory coronavirus 2 (SARS-CoV-2) cases are overgrowing
globally and now become a pandemic. A meta-analysis was conducted to evaluate the …

Abstract Background Coronavirus disease 2019 (COVID-19) is associated with a high
mortality rate, especially in patients with severe illness. We conducted a systematic review …

This meta‐analysis aims to screen the risk factors for severe illness and death and provide
help for early clinical treatment of the new coronavirus (COVID‐19). Based on a …

Abstract Purpose Coronavirus disease 2019 (COVID-19) is an emerging disease that was
first reported in Wuhan city, the capital of Hubei province in China, and has subsequently …