Introduction COVID-19 has become a serious global pandemic. This study investigates the
clinical characteristics and the risk factors for COVID-19 mortality and establishes a novel …

Background The novel coronavirus disease 2019 (COVID-19) has become a global health
emergency. The cumulative number of new confirmed cases and deaths are still increasing …

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 …

Introduction Progression of COVID-19 to severe disease and death is insufficiently
understood. Objective Summarize the prevalence of risk factors and adverse outcomes and …

Background: Identification of risk factors for poor prognosis of patients with coronavirus
disease 2019 (COVID-19) is necessary to enable the risk stratification and modify the …

Abstract Background Coronavirus disease 2019 (COVID-19) has spread around the world,
until now, the number of positive and death cases is still increasing. Therefore, it remains …

Background Early and accurate prognosis prediction of the patients was urgently warranted
due to the widespread popularity of COVID-19. We performed a meta-analysis aimed at …

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

Background The coronavirus disease 2019 (COVID-19) has caused a global pandemic,
resulting in considerable mortality. The risk factors, clinical treatments, especially …