Table 6.

Three-class model performance metrics after training on our expanded multiclass training set.

	TP	TN	FP	FN	Acc.	Sens.	Spec.	PPV	NPV	F1
COVID-19	95	170	30	5	0.833	0.95	0.850	0.760	0.971	0.86
Normal	93	189	11	7	0.940	0.93	0.945	0.894	0.964	0.91
Pneumonia	70	199	1	30	0.897	0.70	0.995	0.989	0.869	0.82