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 …

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 …

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 …

Background This study applies an umbrella review approach to summarise the global
evidence on the risk of severe COVID-19 outcomes in patients with pre-existing health …

Objectives We conducted a systematic literature review and meta-analysis of observational
studies to investigate the association between diabetes, hypertension, body mass index …

Objectives To describe the clinical characteristics, laboratory results, imaging findings, and
in-hospital outcomes of COVID-19 patients admitted to Brazilian hospitals. Methods A cohort …

Introduction To date, COVID‐19 has claimed 4.9 million lives. Diabetes has been identified
as an independent risk factor of serious outcomes in people with COVID‐19 infection …

Abstract The coronavirus disease 2019 (COVID-19) outbreak, caused by severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2), is a global public health issue which has …

Objectives To investigate the risk factors contributing to severity on admission. Additionally,
risk factors of worst severity and fatality were studied. Moreover, factors were compared …