Developing and validating a computed tomography radiomics strategy to predict lymph node metastasis in pancreatic cancer

Table 2 Diagnostic performance of Radscore model for prediction of lymph node metastasis in pancreatic cancer patients using receiver operating characteristic analysis

Group	Model	AUC (95%CI)	Accuracy	Sensitivity	Specificity	PPV	NPV
Training set	Radscore_A	0.92 (0.87-0.97)	86.7%	89.8%	84.9%	77.2%	93.6%
	Radscore_P	0.94 (0.90-0.98)	91.1%	85.7%	94.2%	89.4%	92.0%
Test set	Radscore_A	0.86 (0.73-1.00)	78.8%	91.7%	71.4%	64.7%	93.8%
	Radscore_P	0.93 (0.83-1.00)	87.9%	66.7%	100.0%	100.0%	84.0%

AUC: Area under the curve; PPV: Positive predictive value; NPV: Negative predictive value.