Table 2.

Comparison of the area under the ROC curve (AUC).

Variables	AUC	P value	UCL*	LCL※
HU and QCT	0.960	0.000	0.985	0.935
HU and SPINE DEXA	0.781	0.000	0.836	0.727
HU and FEMUR DEXA	0.767	0.000	0.808	0.726

* UCL: upper confidence limit

^※LCL: lower confidence limit