ABSTRACT The World Health Organization has emphasized that one of the most important
questions to address regarding the covid-19 pandemic is to understand risk factors for …

Background: The unpredictability of the progression of coronavirus disease 2019 (COVID-
19) may be attributed to the low precision of the tools used to predict the prognosis of this …

Introduction In the current COVID-19 pandemic, disease diagnosis is essential for optimal
management and timely isolation of infected cases in order to prevent further spread. The …

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 …

Objective We intend to identify some probable risk factors that are responsible for the
severity of COVID‐19 using a meta‐analysis. Methods The literature exploration lasted up to …

Purpose The purpose of this study was to assess clinical characteristics and risk factors for
mortality of patients with coronavirus disease 2019 (COVID-19) from Mexico, given that it …

Aim COVID-19 clinical presentation is heterogeneous, ranging from asymptomatic to severe
cases. While there are a number of early publications relating to risk factors for COVID-19 …

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 …

Background: The rapid emergence of the novel coronavirus disease 2019 (COVID-19) has
resulted in millions of infected patients and hundreds of thousands of deaths worldwide …

ABSTRACT SARS-CoV-2 has caused a worldwide pandemic that began with an outbreak of
pneumonia cases in the Hubei province of China. Knowledge of those most at risk is integral …