Table 3.
Predictive ability of age and imaging measures with gender as a possible covariate for structural properties
| Material Property |
Variable | Gender | Interaction | Linear Model | Adj- R2 |
|---|---|---|---|---|---|
|
Bending Strength |
Age p = 0.004 |
n.s. | n.s. | 451-2.49*Age | 17.1 |
|
aBMD p < .001 |
p = 0.002 | n.s. | M: 60+0.246*aBMD F: 95+0.246*aBMD |
63.8 | |
|
vBMD p < .001 |
n.s. | n.s. | −505+0.841*vBMD | 37 | |
|
Porosity p < .001 |
n.s. | n.s. | 336-7.1*Porosity | 47.1 | |
|
Cpw p < .001 |
n.s. | n.s. | 325-8.9*Cpw | 53.3 | |
|
Cpw_Skew p < .001 |
n.s. | n.s. | 136+88.4*Cpw_Skew | 55.2 | |
|
Cbw p < .001 |
n.s. | n.s. | 93.6+10.7*Cbw | 35.7 | |
|
Cbw_Skew p < .001 |
n.s. | n.s. | 227-81.3*Cbw_Skew | 38.5 | |
| Toughness |
Age n.s. |
n.s. | n.s. | --- | --- |
|
aBMD n.s. |
n.s. | n.s. | --- | --- | |
|
vBMD n.s. |
n.s. | n.s. | --- | --- | |
|
Porosity p = 0.083 |
p = 0.020 | p = 0.044 | M: 9.63-0.205*Porosity F: 5.17+0.102*Porosity |
8.17 | |
|
Cpw n.s. |
n.s. | n.s. | --- | --- | |
|
Cpw_Skew n.s. |
n.s. | n.s. | --- | --- | |
|
Cbw p = 0.003 |
p = 0.040 | p = 0.027 | M: −0.267+0.488*Cbw F: 6.41+0.00487*Cbw |
18.5 | |
|
Cbw_Skew n.s. |
n.s. | n.s. | --- | --- |
M = Male, F = female, aBMD = DXA area bone mineral density, vBMD = µCT volumetric bone mineral density, Cpw = median pore water, Cpw _Skew = Cpw skewness, Cbw = mean Cbw, Cbw _Skew = Cbw skewness n.s. = not signficant.