표 4 / Table 4 치료 전후 성대결절, 성대폴립, MTD의 음성변화 비교 / Comparison of vocal nodules, vocal polyp, and MTD in voice change before and after treatment

Parameter	Nodulesrank	Polyprank	MTDrank	Chi-square	df	p
G	12.25	13.50	9.60	1.079	2	.583
R	12.38	10.58	12.80	.443	2	.801
B	10.75	13.33	13.40	1.026	2	.599
A	12.46	11.50	11.50	.917	2	.632
S	13.50	11.50	9.00	4.667	2	.097
Jitter	11.58	12.67	12.20	.108	2	.948
Shimmer	11.08	15.67	9.80	2.499	2	.287
NHR	11.42	13.83	11.20	.597	2	.742
SPI	13.25	12.83	8.00	2.237	2	.327
vAm	12.33	16.33	6.00	6.391	2	.041
vFo	12.17	14.17	9.00	1.599	2	.450
PFR	11.88	14.50	9.30	1.694	2	.429
dB range	14.33	12.33	6.00	5.353	2	.069

^* p<.05/3=.0167.