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Guy Lescouflair, MA; Yolande Philion, MA; Jean Morissette, MSc

Arch Otolaryngol. 1980;106(10):602-609.

Abstract
• Otological and audiological evaluations were performed on 278 miners claiming compensation for noise-induced hearing loss (NIHL). Of the total sample, 28.7% had to be excluded as cases of nonmining NIHL. Of the cases diagnosed as NIHL, approximately 50% showed an actual hearing impairment as based on a low fence of 25 dB for the average hearing levels at 0.5, 1, and 2 kHz, and 63% as based on the average hearing levels at 0.5, 1, 2, and 3 kHz for exposures of 15 to 49 years. No significant difference in NIHL was apparent except at 2 kHz between subjects exposed to intermittent vs intermittent-continuous noise. It was difficult to differentiate NIHL from sensorineural losses of other causes and impossible to apply an adequate correction factor for presbycusis.

(Arch Otolaryngol 106:602-609, 1980)

Author Affiliations
From the Department of Otolaryngology (Mr Lescouflair and Ms Philion) and Human Genetics (Mr Morissette), Hospital Center, University of Laval, Quebec.

Footnotes
Accepted for publication Nov 5, 1979.

Reprint requests to Department of Otolaryngology, Hospital Center, University of Laval, 2705 Laurier Blvd, Ste-Foy, Quebec, Canada G1V 4G2 (Mr Lescouflair).

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