Table 6.

The value of each marker in diagnosing femoral neck osteopenia

Parameters	AUC	95% CI	S.E	Cut-off	Sensitivity (%)	Specificity (%)	P-value
OC	0.741	0.648 ~ 0.834	0.047	15.74	0.481	0.963	< 0.0001
PINP	0.695	0.595 ~ 0.794	0.051	58.99	0.494	0.926	0.003
CTX	0.914	0.852 ~ 0.976	0.032	0.41	0.864	0.889	< 0.0001
COL-I	0.802	0.701 ~ 0.904	0.052	0.63	0.975	0.963	< 0.0001
OPN	0.908	0.851 ~ 0.965	0.029	0.14	0.901	0.852	< 0.0001

AUC the area under the curve, CTX C-terminal telopeptide of type I collagen, PINP type I procollagen N-terminal propeptide, OC osteocalcin, OPN osteopontin, COL- I type I collagen