Early Prediction of Disease Progression in Patients with Severe COVID-19 Using C-Reactive Protein to Albumin Ratio

Table 5

Receiver operating characteristic curves of Alb, CRP, CRP/Alb ratio, SpO2, and D-dimer levels to predict disease severity progression.

Parameter	AUC (95% CI)	SE	value
Alb	0.769 (0.709-0.829)	0.031	<0.001
CRP	0.838 (0.788-0.888)	0.025	<0.001
CRP/Alb ratio	0.866 (0.822-0.911)	0.023	<0.001
SpO2	0.107 (0.060-0.153)	0.024	<0.001
D-dimer	0.748 (0.671-0.825)	0.039	<0.001

Abbreviations: SpO2: percutaneous oxygen saturation; CRP: C-reactive protein; Alb: albumin; AUC: area under the ROC curve; SE: standard error.