Table 2.

Infectivity evaluation performance of the artificial intelligence model.

	Accuracy	AUROCa	AUPRCb	Sensitivity	Specificity	PPVc	NPVd
Severance Hospital (internal validation), mean (95% CI)	0.73 (0.72-0.75)	0.79 (0.78-0.81)	0.77 (0.75-0.80)	0.68 (0.65-0.70)	0.78 (0.76-0.80)	0.73 (0.70-0.75)	0.74 (0.72-0.76)
Yongin Severance Hospital (external validation), mean (95% CI)	0.7 (0.68-0.73)	0.77 (0.75-0.79)	0.8 (0.77-0.82)	0.73 (0.70-0.76)	0.67 (0.64-0.70)	0.74 (0.72-0.77)	0.66 (0.63-0.69)

^aAUROC: area under the receiver operating characteristic curve.

^bAUPRC: area under the precision-recall curve.

^cPPV: positive predictive value.

^dNPV: negative predictive value.