CRP and COVID-19: This observation was further confirmed by area under the curve of receiver-operator-characteristics curve (AUROC) analysis, which showed the IFI27 gene expression outperformed laboratory variables (e.g., C-reactive proteins), patient variables (e.g., age, comorbidity) and physiological parameters (e.g., respiratory rate) in predicting COVID-19 outcomes (Table 2 and Figure 3D).