Comparison of CHA₂DS₂VASc and R₂CHA₂DS₂VASc score estimation of in-hospital mortality among COVID-19 patients

Abstract

Objectives: This study aims to compare of CHA₂DS₂VASc and R₂CHA₂DS₂VASc score estimation of in-hospital mortality among COVID-19 patients and find a new scoring system that can better predict the hospital mortality by adding some laboratory parameters to the CHA₂DS₂VASc and R₂CHA₂DS₂VASc scores. 
 Methods: This is a cross-sectional study. A total of 1076 COVID-19 patients with confirmed COVID-19 PCR tests were included from September 2020 to March 2021. Age, sex, comorbidity, laboratory, survival times, and death status of the patients were recorded. The scores CHA₂DS₂VASc and R₂CHA₂DS₂VASc of each patient were calculated. A new mortality prediction score was created to establish the most effective model with logistic regression analysis, including laboratory values. 
 Results: Of the 1076 patients hospitalized for COVID-19, 15.1% died, while 84.9% survived. There was no significant difference between the two groups in sex. All comorbidities were significantly higher in the deceased than in the survivors (p