Table 2.

Multilevel regression models for variables that contribute to the change in WB_BMC, WB_BMD, FN_BMD and LS_BMD

Variables	WB_BMC		WB_BMD		FN_BMD		LS_BMD
Fixed effect	Estimates ± SE	P value	Estimates ± SE	P value	Estimates ± SE	P value	Estimates ± SE	P value
Intercept	−1669.01 ± 140.83	<0.001	0.4690 ± 0.0267	<0.001	0.3354 ± 0.0508	<0.001	0.0754 ± 0.058	0.198
Osteocalcin	−0.6044 ± 0.3273	0.069	−0.0003 ± 0.0001	<0.001	0.00004 ± 0.0001	0.743	−0.0003 ± 0.0001	0.021
CTX	7.6320 ± 32.3889	0.814	0.0014 ± 0.0063	0.827	−0.0307 ± 0.0118	0.011	−0.0155 ± 0.0125	0.219
Leptin	−9.9625 ± 2.5970	0.001	−0.0019 ± 0.0005	0.001	−0.0031 ± 0.0010	0.002	−0.0037 ± 0.0010	0.001
Adiponectin	2.7653 ± 1.9866	0.168	0.0006 ± 0.0004	0.138	0.0010 ± 0.0007	0.173	0.0004 ± 0.0008	0.587

SE standard error, BMI body mass index, WB whole body, LS lumbar spine, FN femoral neck, BMD bone mineral density, BMC bone mineral content, CTX C-terminal telopeptide of type I collagen, MVPA moderate-to-vigorous physical activity, Model was controlled by age, BMI and Tanner stage