Fig. 4From: Factors associated with overdiagnosis of benign pulmonary nodules as malignancy: a retrospective cohort studyReceiver operating characteristics curves with calibration plots representing the discriminatory ability of the predictive model for benign PNs in (A) training (n = 285) and (B) validation sets (n = 122) by using complete case analysis. AUC = area under the receiver operating characteristic curveBack to article page