Table 4.

Comparison of jitter, shimmer, and HNR between normal and UVFP subjects.

	UVFP		Normal		t or U	p value
	N	Mean ± SD	N	Mean ± SD
Jitter ppq5 (%)	17	1.06 ± 1.02	85	0.26 ± 0.18	U = 249	<0.001
Shimmer apq11 (%)	17	10.16 ± 3.34	85	7.14 ± 3.22	U = 376	0.001
HNR (dB)	17	10.11 ± 4.94	85	14.75 ± 4.46	t = −3.85	<0.001

UVFP: Unilateral Vocal Fold Paralysis; SD: standard deviation; t: t-test;  U: Mann-Whitney U test.