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. Author manuscript; available in PMC: 2019 Aug 24.
Published in final edited form as: Muscle Nerve. 2018 Feb 24:10.1002/mus.26111. doi: 10.1002/mus.26111

Table 2.

Relative contribution of individual model parameters in various models

Prediction Model Model parameters Estimate SE P-value RMSE (scaled) RMSE original scale, μm2 RMSE, %
50 kHz phase without age Phase 50 kHz 8.36E-01 0.085 <0.0001 0.541 122.89 28.83
50 kHz phase with age* Age 9.26E-01 0.058 <0.0001 0.374 84.92 19.92
Cole parameters without age fc 2.46E-01 0.120 0.047 graphic file with name nihms949264t1.jpg 0.635 144.12 33.81
R0 −7.52E-01 0.237 0.003
Rinf −7.76E-01 0.176 <0.0001
α 6.96E-01 0.184 0.001
Cole parameters with age* Age 9.26E-01 0.058 <0.0001 0.374 84.92 19.92

RMSE, root mean square error

*

Both 50 kHz phase and Cole parameters are removed when included with age