Table 6:

Statistical results from the group comparison using videostroboscopy and high-speed videoendoscopy dynamically interlinked with digital kymography for: normal vs PreOp, PreOp vs PostOp, and PostOp vs normal. The values presented are the differences between the means within each pair of groups. Positive Mean Δ values for mucosal wave and amplitude, and negative Mean Δ values for asymmetry and edge, indicate better function in the first group comparing to the second. Tukey’s adjusted p values are statistically significant at p<0.05 (*).

Vibratory Measure	Imaging Technique	Normal vs PreOp		PreOp vs PostOp		Normal vs PostOp
		Mean Δ	p Value	Mean A	p Value	Mean Δ	p Value
Left Mucosal Wave	VS	13	0.2134	−4	0.9623	10	0.5647
	HSV+DKG	28	0.0009*	−3	0.9903	25	0.0037*
Right Mucosal Wave	VS	23	0.0066*	−3	0.9269	20	0.0489*
	HSV+DKG	36	<0.0001*	−6	0.5393	29	<0.0001*
Left Amplitude	VS	12	<0.0001*	−6	0.0752	6	0.0269*
	HSV+DKG	17	<0.0001*	−12	<0.0001*	5	0.1254
Right Amplitude	VS	12	<0.0001*	−3	0.1506	9	0.0002*
	HSV+DKG	14	<0.0001*	−8	<0.0001*	7	0.0172*
Left Right Phase Asymmetry	VS	−17	0.0366*	13	0.0759	−4	0.8918
	HSV+DKG	−14	0.1524	6	0.6196	−8	0.7277
Left Vocal Fold Edge	VS	−36	<0.0001*	10	0.0262*	−28	<0.0001*
	HSV+DKG	−39	<0.0001*	19	<0.0001*	−21	<0.0001*
Right Vocal Fold Edge	VS	−32	<0.0001*	6	0.4083	−26	<0.0001*
	HSV+DKG	−35	<0.0001*	17	<0.0001*	−18	0.0004*

VS=videostroboscopy; HSV+DKG= high-speed videoendoscopy dynamically interlinked with digital kymography; PreOp=preoperative ratings; PostOp=postoperative ratings; Mean Δ=difference between the means