Table 2.

The AUROC of each of the indices for the presence of metabolic syndrome components

Variables	Elevated FG	Elevated BP	Elevated TG	Decreased HDL-C
Males	AUC (95 % CI)	AUC (95 % CI)	AUC (95 % CI)	AUC (95 % CI)
BMI	0.611 (0.600–0.623)*	0.615 (0.603–0.627)*	0.672 (0.660–0.683)*	0.634 (0.622–0.645)*
FM index	0.613 (0.601–0.624)*	0.625 (0.614–0.637)*	0.679 (0.668–0.690)**	0.642 (0.630–0.653)**
LM index	0.571 (0.560–0.583)*	0.569 (0.557–0.581)*	0.611 (0.599–0.623)*	0.587 (0.575–0.599)*
BMC index	0.536 (0.525–0.548)*	0.517 (0.505–0.529)*	0.531 (0.519–0.543)*	0.540 (0.528–0.552)*
SM index	0.505 (0.493–0.517)*	0.506 (0.494–0.518)*	0.572 (0.561–0.584)*	0.546 (0.534–0.558)*
TFM index	0.620 (0.609–0.632)*	0.615 (0.604–0.627)*	0.631 (0.619–0.642)*	0.614 (0.602–0.625)*
WHtR	0.685 (0.674–0.696)	0.677 (0.665–0.688)	0.693 (0.682–0.704)	0.657 (0.644–0.667)
Females	AUC (95 % CI)	AUC (95 % CI)	AUC (95 % CI)	AUC (95 % CI)
BMI	0.689 (0.679–0.698)*	0.693 (0.683–0.703)*	0.688 (0.678–0.698)*	0.640 (0.630–0.650)*
FM index	0.665 (0.655–0.674)*	0.676 (0.666–0.686)*	0.680 (0.670–0.689)*	0.627 (0.617–0.637)*
LM index	0.670 (0.660–0.680)*	0.670 (0.660–0.679)*	0.650 (0.640–0.660)*	0.621 (0.611–0.631)*
BMC index	0.550 (0.540–0.560)*	0.625 (0.615–0.635)*	0.570 (0.559–0.580)*	0.534 (0.524–0.544)*
SM index	0.615 (0.605–0.625)*	0.604 (0.594–0.614)*	0.597 (0.587–0.607)*	0.595 (0.585–0.605)*
TFM index	0.690 (0.680–0.699)*	0.684 (0.674–0.693)*	0.664 (0.654–0.674)*	0.621 (0.611–0.631)*
WHtR	0.735 (0.726–0.744)	0.776 (0.768–0.785)	0.738 (0.729–0.747)	0.671 (0.662–0.681)

Abbreviations: AUROC area under the receiver operating characteristic curve; FG fasting glucose; BP blood pressure; TG triglyceride; HDL-C high density lipoprotein cholesterol; AUC area under the curve; CI confidence interval; BMI, body mass index; FM fat mass; LM lean mass; BMC bone mineral content; SM skeletal muscle mass; TFM trunk fat mass; WHtR waist to height ratio

^* P < 0.001 compared with the WHtR

^** P <0.01 compared with the WHtR