Table 4.

Multivariate combinations of imaging measurements explaining the variance of material strength

Variable 1a	Variable 2	Linear Modelb	Adj-R2
vBMD p = 0.001	Cbw p < .001	0.424*vBMD+0.447*Cbw	52.2
vBMD p = 0.003	Cbw_Skew p = 0.002	0.402*vBMD-0.427*Cbw_Skew	49.4
vBMD p = 0.032	Cpw_Skew p < .001	0.275*vBMD+0.589*Cpw_Skew	59.2
Porosity p < .001	Cbw p = 0.002	−0.509*Porosity+0.39*Cbw	58.0
Porosity p < .001	Cbw_Skew p = 0.004	−0.504*Porosity-0.375*Cbw_Skew	56.6
Cpw p < .001	Cbw p = 0.002	−0.566*Cpw+0.372*Cbw	63.5
Cpw p < .001	Cbw_Skew p = 0.001	−0.567*Cpw-0.373*Cbw_Skew	63.6

^avBMD = µCT volumetric bone mineral density, C_pw = median pore water, C_pw _Skew = C_pw skewness, C_bw = mean C_bw, C_bw _Skew = C_bw skewness.

^bStandardized coefficients from the general linear model. No interactions were significant.