Bone Organic-Inorganic Phase Ratio Is a Fundamental Determinant of Bone Material Quality

Table 2

Statistical characteristics of organic-inorganic phase ratio in groups of specimens having top material quality.

Material property	Top 10%		Top 20%		Top 30%
	Mean (SD)	Range	Mean (SD)	Range	Mean (SD)	Range
Density	0.61 (0.03)	(0.54, 0.68)	0.62 (0.04)	(0.54, 0.77)	0.64 (0.06)	(0.54, 0.83)
Young’s modulus	0.61 (0.01)	(0.54, 0.68)	0.62 (0.04)	(0.54, 0.72)	0.65 (0.07)	(0.54, 0.88)
Yield stress	0.62 (0.02)	(0.54, 0.71)	0.63 (0.05)	(0.54, 0.78)	0.65 (0.07)	(0.54, 0.88)
Peak stress	0.62 (0.04)	(0.54, 0.71)	0.62 (0.04)	(0.54, 0.72)	0.64 (0.06)	(0.54, 0.83)
Energy-to-failure	0.62 (0.05)	(0.54, 0.72)	0.63 (0.07)	(0.54, 0.79)	0.65 (0.12)	(0.54, 0.89)