Table 3.

Independent Role (Pearson's Correlation Coefficient, r) of Endplate Biochemical Composition on Biomechanical Properties (n = 20 Endplates)

	Collagen/GAG Ratio	Collagen Content	GAG Content	Water Content
A (MPa)	0.56b	0.20	–0.38	0.09
B	0.19	0.49a	0.02	–0.04
Tensile modulus, E0%	0.76c	0.59b	–0.34	0.07
Energy dissipation, C	–0.34	–0.33	0.17	0.03
Short relaxation constant, τ1	0.03	–0.02	–0.14	–0.01
Long relaxation constant, τ2	0.20	0.19	–0.06	0.13

^ap < 0.05.

^bp < 0.01.

^cp < 0.001.