. Author manuscript; available in PMC: 2017 Sep 7.

Published in final edited form as: J Am Acad Audiol. 2010 May;21(5):301–357. doi: 10.3766/jaaa.21.5.3

Table 2.

Published Criteria for Significant Threshold Shifts

Type of Hearing Loss	Criterion Number of Frequencies	Criterion Threshold Shift	Source
Ototoxic induced	any one frequency, confirmed by retest	20 dB decrease	ASHA (1994)
	two or more consecutive, confirmed by retest	10 dB decrease
	three or more consecutive, confirmed by retest	loss of response
Cisplatin induced (adults)	threshold loss at 8 kHz	20 dB	Simpson et al (1992)
Cisplatin induced (children)	two-frequency average at 6 and 8 kHz	15 dB	Pasic and Dobie (1991)
Noise induced	three-frequency average at 2, 3, 4 kHz	10 dB	Occupational Safety and Health Administration (1983)
Noise induced	any one frequency, on two separate tests	15 dB	National Institute for Occupational Safety and Health (1998)