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 …

Introduction COVID-19 disease has spread worldwide from December 2019 to the present
day; the early stage of this disease can be associated with high D-dimer, prolonged PT, and …

Abstract Background Currently, the United States has the largest number of reported
coronavirus disease 2019 (COVID-19) cases and deaths globally. Using a geographically …

Abstract The coronavirus disease 2019 (COVID-19) pandemic is a scientific, medical, and
social challenge. The complexity of the severe acute respiratory syndrome coronavirus 2 …

Objective To review and appraise the validity and usefulness of published and preprint
reports of prediction models for prognosis of patients with covid-19, and for detecting people …

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 …

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 …

Objective Risk factors for in-hospital mortality in confirmed COVID-19 patients have been
summarized in numerous meta-analyses, but it is still unclear whether they vary according to …

Introduction Peru is among the top ten countries with the highest number of coronavirus
disease 2019 (COVID-19) cases worldwide. The aim of the study was to describe the clinical …

Increased age appears to be a strong risk factor for COVID-19 severe outcomes. However,
studies do not sufficiently consider the age-dependency of other important factors …