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. Author manuscript; available in PMC: 2014 Sep 13.

Published in final edited form as: Osteoporos Int. 2012 Oct 24;24(6):1869–1879. doi: 10.1007/s00198-012-2174-8

Table 2. Racial differences in tibial bone density, mass, structure and strength^a.

	Female		Male		Two-way ANOVA

	White	Black	White	Black	Sex × Race	Sex	Race
Density
Ct.vBMD	1057 ± 32	1082 ± 30	1040 ± 35	1071 ± 29	NS	<0.001	<0.001
Mass
Ct.BMC (mg/mm)	232 ± 34	264 ± 42	243 ± 48	267 ± 49	NS	<0.05	<0.001
Structure
Tt.Ar (cm²)	4.14 ± 0.68	4.56 ± 0.76	4.41 ± 0.78	4.68 ± 0.90	NS	<0.01	<0.001
Ct.Ar (cm²)	2.20 ± 0.32	2.44 ± 0.36	2.34 ± 0.46	2.50 ± 0.47	NS	0.001	<0.001
Ct.Th (mm)	3.65 ± 0.46	3.85 ± 0.43	3.76 ± 0.59	3.88 ± 0.50	NS	NS	0.001
Ps.Pm (mm)	71.8 ± 6.1	75.4 ± 6.3	74.2 ± 6.5	76.3 ± 7.3	NS	<0.01	<0.001
Es.Pm (mm)	48.9 ± 6.6	51.2 ± 6.2	50.6 ± 6.1	51.9 ± 6.6	NS	NS	<0.01
Strength
SSI_P (mm³)	1480 ± 310	1778 ± 415	1604 ± 411	1829 ± 486	NS	<0.01	<0.001

^a

Data are mean ± SD, and adjusted for tibial length and leg mCSA (except Ct.vBMD)