Table 2.

Serum and urine bone turnover markers and BMD

	Premenopausal women	Postmenopausal women	P value
BSAP (μg/liter)	21 ± 6	29 ± 9	0.001
P1NP (μg/liter)	52 ± 25	65 ± 28	0.121
Osteocalcin (ng/ml)	7 ± 5	8 ± 5	0.660
CTX (ng/ml)	0.59 ± 0.26	0.80 ± 0.27	0.018
NTX (nmol/mmol Cr)	43 ± 17	57 ± 19	0.021
L1–L4 BMD (g/cm2)	1.182 ± 0.093	1.086 ± 0.143	0.017
Mean femoral neck BMD (g/cm2)	1.030 ± 0.118	0.884 ± 0.074	<0.001
Mean trochanter BMD (g/cm2)	0.805 ± 0.109	0.736 ± 0.073	0.027
Mean total hip BMD (g/cm2)	1.035 ± 0.116	0.924 ± 0.084	0.002

Data are expressed as mean ± sd.