Table 1.

Comparison of multivariate regression models predicting stiffness.

	N	R2	p
PI	12	0.63	0.002*
Cortical area	12	0.40	0.03*
PI + cortical area	12	0.65	0.01*
Collagen	12	0.01	0.76
Water	12	0.12	0.28
Collagen + water	12	0.52	0.04*
PI + collagen	9	0.72	0.02*
PI + water	9	0.63	0.05
PI + collagen + water	9	0.72	0.07
PI + collagen + cortical area	9	0.74	0.06