Table 4.

Three-class model performance metrics after training on the COVIDx multiclass training set.

	TP	TN	FP	FN	Acc.	Sens.	Spec.	PPV	NPV	F1
COVID-19	95	166	34	5	0.870	0.95	0.830	0.736	0.971	0.84
Normal	86	192	8	14	0.926	0.86	0.960	0.915	0.977	0.88
Pneumonia	72	195	5	28	0.890	0.72	0.975	0.935	0.874	0.82