Table 1 . Comparison of the means (SDs) of the VEMP parameters in the two study groups .

VEMP parameters	Age Group	Mean ± SD	Range	p
Threshold (dBnHL)	Older adults (n=49 ears)	87.65	± 5.69	75 – 95	<0.001
	Young adults (n=49 ears)	78.88	±5.23	65–85
p1 latency (ms)	Older adults (n=50 ears)	16.46	± 1.73	14.40 – 23.25	<0.001
	Young adults (n=62 ears)	15.43	± 1.23	13.50 – 18.40
n1 latency (ms)	Older adults (n=50 ears)	24.09	± 2.00	20.92 – 31.27	0.06
	Young adults (n=62 ears)	24.77	± 1.88	19.50 – 27.93
p1-n1 amplitude(μV)	Older adults (n=50 ears)	63.79	± 41.79	22.70 – 199.95	<0.001
	Young adults ( n=62 ears)	144.14	± 55.31	34.42 –258.06
Asymmetry Ratio (AR%)	Older adults (n=23 persons)	15.90	± 11.83	0.00 – 38.33	0.01
	Young adults (n=31 persons)	8.38	± 8.47	0.05 – 34.53

SD: standard deviation, ms: millisecond, μV: microvolt, and dB nHL: decibel normalized hearing level.