Sensorineural Hearing Loss Associated with Occupational Noise Exposure: Effects of Age-Corrections

Sridhar Krishnamurti
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Sridhar Krishnamurti: Associate Professor/Department of Communication Disorders, 1199 Haley Center, Auburn University, Auburn, AL 36849, U.S.A.

IJERPH, 2009, vol. 6, issue 3, 1-11

Abstract: Noise-induced permanent threshold shifts (NIPTS) were computed from retrospective audiometric analyses by subtracting aging effects on hearing sensitivity in sixty-eight patients with bilateral sensorineural hearing loss who reported significant occupational noise exposure histories. There were significant effects of age on NIPTS but no significant gender- or ear- differences in terms of NIPTS. The NIPTS at 2,000 Hz was found to be significantly greater than NIPTS at frequencies 500 Hz, 1,000 Hz, 4,000 Hz, and 8,000 Hz. Defined noise notches were seen in the audiograms of 38/136 (27%) ears with SNHL. Results support models that suggest interactive effects of aging and noise on sensorineural hearing loss in ears with occupational noise exposure.

Keywords: Occupational noise exposure; hearing loss; aging (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2009
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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