. Author manuscript; available in PMC: 2012 Mar 27.

Published in final edited form as: J Commun Disord. 2008 Feb 29;41(6):485–500. doi: 10.1016/j.jcomdis.2008.02.001

Table 5.

p-Values of statistical comparisons for mean D₂, percent jitter, percent shimmer, SNR, F₀, vF₀, and vAm

	Non-pathologic vs. non-surgical			Non-pathologic vs. surgical			Non-surgical vs. surgical
	Males	Females	Overall	Males	Females	Overall	Males	Females	Overall
D₂	0.0108^*	0.0010^*	<0.0001^*	0.5893	0.0258	0.0544	0.0003^*	0.0213	<0.0001^*
Percent jitter	0.3204			0.1245			0.1741
Percent shimmer	0.0004^*			0.0002^*			0.7393
SNR	0.0007^*			0.0001^*			0.4253
F₀	0.0533			0.0001^*			0.0041^*
vF₀	0.4286			0.6466			0.1781
vAm	0.1564			0.8379			0.0370

Comparisons are made with non-pathologic, non-surgical (control), and surgical groups. The p-values are also given for statistical comparisons of D₂ values by gender. The p-values are determined using an unpaired Wilcoxon rank sum test.

p-Values that are statistically significant at the adjusted p-values of 0.0167 for D₂ and 0.0083 for perturbation measures. p-values are adjusted using a Bonferroni correction.