Table 3.

Simple correlations of bone microarchitectural measures with age at menarche, bone age, BMI, height, and lean mass for the group as a whole

	Bone age		BMI		Lean mass		Height		Age of menarche
	r	P	r	P	r	P	r	P	r	P
Distal tibia
Trabecular area (mm2)	−0.27	0.06			0.65	<0.0001	0.79	<0.0001	0.50	0.0003
Trabecular density (mg HA/cm3)	0.32	0.02	0.24	0.09					−0.39	0.006
Tb.N (1/mm)	−0.31	0.03	0.39	0.005					−0.26	0.07
Tb.Th (mm)	0.52	0.0001
Tb.Sp (mm)	0.24	0.09	−0.38	0.006					0.35	0.01
Cortical area (mm2)			0.58	<0.0001	0.45	0.001			−0.28	0.05
Cortical density (mg HA/cm3)	0.34	0.02			−0.28	0.045	−0.55	<0.0001	−0.42	0.003
Cortical thickness (mm)			0.41	0.003			−0.33	0.02	−0.48	0.0004
Cortical perimeter (mm)					0.73	<0.0001	0.83	<0.0001	0.45	0.001
Total area (mm2)	−0.26	0.07			0.72	<0.0001	0.82	<0.0001	0.45	0.001
Total density (mg HA/cm3)	0.34	0.02	0.27	0.06			−0.45	0.001	−0.53	0.0001
Ultradistal radius
Trabecular area (mm2)	−0.26	0.06			0.54	<0.0001	0.60	<0.0001	0.35	0.01
Trabecular density (mg HA/cm3)							−0.32	0.03	−0.52	0.0001
Tb.N (1/mm)									−0.26	0.07
Tb.Th (mm)	0.30	0.04							−0.42	0.003
Tb.Sp (mm)									0.35	0.01
Cortical area (mm2)			0.36	0.01					−0.36	0.01
Cortical density (mg HA/cm3)	0.44	0.002					−0.37	0.007	−0.43	0.002
Cortical thickness (mm)									−0.47	0.0007
Cortical perimeter (mm)			0.28	0.049	0.66	<0.0001	0.64	<0.0001	0.30	0.04
Total area (mm2)					0.61	<0.0001	0.62	<0.0001	0.29	0.047
Total density (mg HA/cm3)	0.29	0.04					−0.41	0.003	−0.59	<0.0001

Only P values <0.1 are reported. HA, Hydroxyapatite.