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October 1980

Hearing Loss Among Miners Claiming Compensation

Author Affiliations

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

Arch Otolaryngol. 1980;106(10):602-609. doi:10.1001/archotol.1980.00790340010003

• 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)