표 1. | Table 1. 집단 간 음질 변수상의 결과값 | Voice quality differences between groups

Parameter	Aging	Control	t-value	p-value
F0	129.02±10.20a	116.80±9.93	3.82	.0001
Jitter	1.53±.38	0.87±.23	6.57	.0000
Shimmer	4.24±0.50	3.52±0.34	5.39	.0000
CPP	9.83±.63	10.59±.62	–3.86	.0001

Mean±SD.
CPP, cepstral peak prominenc.