Table 4.

(A) shows mixed two-way ANOVA p-values for log-transformed D₂, percent jitter, percent shimmer, signal-to-noise ratio (SNR), vF₀, and vAm. (B) shows Fisher’s LSD p-values for multiple comparisons of the two significant interaction terms (indicated by **).

(A)		Stimulator-off			Stimulator-on
		Effect of surgery	Effect of medication	Interaction	Effect of surgery	Effect of medication	Interaction
Bilateral	lD2	0.033*	0.226	0.690	0.019*	0.609	0.709
	ljitter	0.997	0.188	0.868	0.914	0.915	0.124
	lshimmer	0.036*	0.521	0.466	0.323	0.551	0.349
	lsnr	0.097	0.891	0.655	0.446	0.948	0.559
	lvF0	0.006*	0.394	0.172	0.008*	0.494	0.131
	lvAm	0.390	0.475	0.261	0.156	0.515	0.048**
Left	lD2	<0.0001*	0.253	0.621	<0.0001*	0.916	0.515
	ljitter	0.191	0.218	0.753	0.522	0.614	0.044**
	lshimmer	0.372	0.134	0.832	0.419	0.908	0.169
	lsnr	0.451	0.750	0.927	0.963	0.555	0.340
	lvF0	0.023*	0.186	0.513	0.043*	0.256	0.439
	lvAm	0.035*	0.031*	0.307	0.050	0.155	0.814
Right	lD2	<0.0001*	0.649	0.898	<0.0001*	0.972	0.559
	ljitter	0.079	0.680	0.448	0.174	0.793	0.198
	lshimmer	0.734	0.470	0.780	0.453	0.751	0.237
	lsnr	0.430	0.695	0.794	0.645	0.802	0.688
	lvF0	0.037*	0.423	0.485	0.078	0.265	0.806
	lvAm	0.035*	0.662	0.520	0.104	0.660	0.117

(B)	BM vs. AM	AM vs. AMSON	AM vs. BMSON	BM vs. AMSON	BM vs. BMSON	BMSON vs. AMSON
ljitter	0.214	0.929	0.435	0.670	0.195	0.107
lvAm	0.281	0.026	0.345	0.131	0.848	0.235

^*indicates p-values significant at the 0.05 level.