. Author manuscript; available in PMC: 2013 Dec 1.

Published in final edited form as: Physiol Meas. 2012 Nov 15;33(12):2017–2031. doi: 10.1088/0967-3334/33/12/2017

Table 1.

Table of p values from conducting t-tests comparing twelve different steady-state indicators for NPH vs SVS+, SVS + vs SVS −, and SVS vs NPH groups. It can seen that only the steady-state indicator based on the standard deviation of the Geodesic distance correctly differentiates between NPH and SVS +, SVS + and SVS - groups while avoids discriminating between SVS − and NPH.

Steady State Index		NPH vs SVS+ p	SVS+ vs SVS− p	SVS− vs NPH p
Geodesic Distance	Mean	0.014	0.086	0.515
	Standard Deviation	0.000	0.022	0.111
	90^th Percentile	0.003	0.053	0.394
Euclidean Distance	Mean	0.036	0.127	0.493
	Standard Deviation	0.002	0.078	0.098
	90^th Percentile	0.020	0.120	0.335
Pearson Correlation Coefficient	Mean	0.000	0.880	0.000
	Standard Deviation	0.000	0.844	0.000
	90^th Percentile	0.000	0.907	0.000
Mean ICP	Mean	0.000	0.041	0.001
	Standard Deviation	0.000	0.081	0.000
	90^th Percentile	0.032	0.442	0.094