Table 2.

AUC of ROC of WC, PBF and BMI to diagnose PCOS

Age (y/o)	Obesity parameter	AUC ± SE	95 % CI of AUC		Somers’ D	P a	P
			Lower limit	Upper limit
<26	WC (cm)	0.798 ± 0.068	0.665	0.930	0.596	<0.001	0.558b
	PBF (%)	0.769 ± 0.060	0.650	0.887	0.537	<0.001	0.526c
	BMI (kg/m2)	0.817 ± 0.059	0.701	0.933	0.634	<0.001	0.134d
26–31	WC (cm)	0.787 ± 0.0423	0.704	0.8700	0.574	<0.001	0.551b
	PBF (%)	0.765 ± 0.0361	0.694	0.8355	0.529	<0.001	0.544c
	BMI (kg/m2)	0.768 ± 0.0403	0.689	0.8472	0.537	<0.001	0.898d
>31	WC (cm)	0.889 ± 0.043	0.806	0.973	0.779	<0.001	0.001b
	PBF (%)	0.838 ± 0.042	0.756	0.920	0.676	<0.001	0.090c
	BMI (kg/m2)	0.773 ± 0.061	0.654	0.891	0.545	<0.001	0.138d
合计	WC (cm)	0.814 ± 0.029	0.758	0.870	0.629	<0.001	0.100b
	PBF (%)	0.789 ± 0.025	0.7397	0.838	0.577	<0.001	0.261c
	BMI (kg/m2)	0.782 ± 0.028	0.7265	0.838	0.564	<0.001	0.724d

^aAUC compared with 0.5

^bcompared with BMI

^ccompared with WC

^dcompared with PBF