Table 3.

Accuracy of prediction models for the diagnosis of progressive COVID‐19

Models	Cutoff value	AUROC	Youden index	Sensitivity, %	Specificity, %	+LR	−LR	PPV, %	NPV, %
Model 1	0.133	0.849	0.573	80	77.26	3.52	0.26	34.6	96.2
Model 2	0.136	0.872	0.603	80	80.27	4.05	0.25	37.9	96.4

Abbreviations: AUROC, area under the receiver operating characteristic curve; NPV, negative predictive value (%); PPV, positive predictive value; +LR, positive likelihood ratio; −LR, negative likelihood ratio.