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 …

Current evidence on COVID-19 prognostic models is inconsistent and clinical applicability
remains controversial. We performed a systematic review to summarize and critically …

Introduction Since the introduction of the UK's National Early Warning Score (NEWS) and its
modification, NEWS2, coronavirus disease 2019 (COVID-19), has caused a worldwide …

Background/Objectives Several scoring systems have been specifically developed for risk
stratification in COVID‐19 patients. Design We compared, in a cohort of confirmed COVID …

Background Patients admitted to hospital with Covid-19 are at risk of deterioration. The
National Early Warning Score (NEWS2) is widely recommended, however it's validity in …

Objectives To evaluate, in a cohort of adults aged≥ 80 years, the overlapping effect of
clinical severity, comorbidities, cognitive impairment, and frailty, for the in-hospital death risk …

Introduction: To date, mainly due to age-related vulnerability and to coexisting comorbidities,
older patients often face a more severe COVID-19. This study aimed to identify at …

Background: During the coronavirus disease 2019 (COVID-19) pandemic, the National Early
Warning Score 2 (NEWS2) is recommended for the risk stratification of COVID-19 patients …

Background Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), an emerging
virus, has caused a global pandemic. Coronavirus disease 2019 (COVID-19), caused by …

Background It is necessary to identify critical patients requiring hospitalization early due to
the rapid increase in the number of COVID-19 cases. Aim This study aims to evaluate the …