ALB and COVID-19: Although, several studies have reported that albumin maypredict disease severity in patients with COVID-19 [14,15], we found that incritically ill patients, if the albumin level was less than 35.1 g/l,the risk of nonsurvivors is higher (sensitivity: 76.47%, 95% CI:0.50–0.93; specificity: 73.81%, 95% CI: 0.58–0.85).However, as hypoproteinemia is defined as blood albumin <25 g/l[16], it will be too late to add albuminat this stage, as the risk of nonsurvivors would be greatly increased.