Table 3.

The AUCs of the ROC curves for the nomogram and variables from the logistic regression model in the training group and validation group.

Variables	Development group			Validation group
	AUC	95%CI	P value	AUC	95%CI	P value
Nomogram variable	0.676	0.668, 0.684	<0.001	0.672	0.660, 0.684	<0.001
Female age	0.616	0.608, 0.624	<0.001	0.620	0.608, 0.624	<0.001
Female BMI	0.519	0.510, 0.527	<0.001	0.514	0.502, 0.527	0.026
Tubal factor infertility	0.508	0.500, 0.517	0.049	0.511	0.499, 0.524	0.080
Uterine factor infertility	0.516	0.508, 0.524	<0.001	0.515	0.503, 0.528	0.016
Male factor infertility	0.535	0.526, 0.543	<0.001	0.531	0.518, 0.543	<0.001
Unexplained infertility	0.518	0.510, 0.527	<0.001	0.519	0.506, 0.532	0.003
AFC	0.632	0.624, 0.640	<0.001	0.634	0.622, 0.646	<0.001
Basal FSH	0.580	0.572, 0.588	<0.001	0.572	0.559, 0.584	<0.001