Table 7.

The value of each marker in diagnosing osteoporosis

Parameters	AUC	95% CI	S.E	Cut-off	Sensitivity (%)	Specificity (%)	P-value
OC	0.767	0.672 ~ 0.862	0.048	16.98	0.611	0.926	< 0.0001
PINP	0.726	0.628 ~ 0.824	0.050	61.26	0.593	0.889	< 0.0001
CTX	0.842	0.769 ~ 0.914	0.037	0.59	0.685	0.852	< 0.0001
COL-I	0.916	0.861 ~ 0.972	0.028	0.46	0.852	0.907	< 0.0001
OPN	0.891	0.819 ~ 0.962	0.036	0.44	0.870	0.907	< 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