Fig. 2

Verification of the nomogram. A ROC curve of the nomogram. The AUC is 0.734 (95% confidence interval, 0.800–0.838). B ROC curve for each factor in the nomogram: paternal age (AUC, 0.618), basal LH (AUC, 0.558), endometrial preparation (AUC, 0.409), and days of the blastocyst (AUC, 0.581). C Calibration plots of the nomogram. D Decision curve analysis of the nomogram. E Clinical impact curve of the nomogram. AUC, area under the curve; LH, luteinizing hormone; ROC, receiver-operating characteristic