Table 5

Coefficient of determination R2, standard error of estimate (MPa for E and HA0, e-15m4/Ns for kr, k0 and ka) and power of the performed test with α=0.05 of the multilinear regressions between the mechanical properties and the MRI parameters for the nucleus pulposus and the annulus fibrosus
Coefficient of determination R2 Standard error of estimate Power with α=0.05 E kr HA0 k0 ka
Nucleus Pulposus
In-situ 0.48 0.53 0.48 0.49 0.70
0.04 55.6 0.08 73.4 1.2
0.73 0.79 0.72 0.74 0.95
Digested-6h 0.48 0.62 0.34 0.45 0.67
0.007 34.6 0.06 15.6 2.2
0.67 0.85 0.47 0.63 0.90
Digested-18h 0.68 0.62 0.45 0.34 0.55
0.01 151.9 0.05 21.9 2.1
0.91 0.85 0.63 0.48 0.76
Digested-24h 0.65 0.63 0.27 0.38 0.41
0.006 173.7 0.03 24.5 3.2
0.91 0.90 0.41 0.58 0.63
Annulus Fibrosus
In-situ 0.52 0.17 0.65 0.65 0.48
0.03 9.8 0.14 40.4 3.6
0.78 0.26 0.91 0.88 0.73
Digested-6h 0.15 0.52 0.49 0.39 0.45
0.02 41.7 0.06 62.5 2.1
0.21 0.73 0.72 0.49 0.63
Digested-18h 0.70 0.66 0.63 0.32 0.48
0.01 13.1 0.03 266.2 2.2
0.92 0.89 0.86 0.44 0.68
Digested-24h 0.01 0.80 0.21 0.32 0.71
0.93 35.1 0.07 34.1 1.6
0.67 0.99 0.32 0.48 0.95

Recuerda et al.

Recuerda et al. BMC Musculoskeletal Disorders 2012 13:195   doi:10.1186/1471-2474-13-195

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