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Hearing Threshold Levels Of Australian Coal Mine Workers: A Retrospective Cross-Sectional Study Of 64196 Audiograms, Adelle Liebenberg, Alan M. Brichta, Valerie M. Nie, Sima Ahmadi, Carole L. James
Hearing Threshold Levels Of Australian Coal Mine Workers: A Retrospective Cross-Sectional Study Of 64196 Audiograms, Adelle Liebenberg, Alan M. Brichta, Valerie M. Nie, Sima Ahmadi, Carole L. James
Research outputs 2014 to 2021
Objective
This study examined the hearing threshold levels (HTL) of workers commencing employment in Australian coal mines in the State of New South Wales (NSW). The aim was to establish if some degree of hearing loss was identifiable in the mandatory pre-employment audiograms of workers.
Design
This was an observational, retrospective, repeated cross-sectional study. Study Sample De-identified audiometric records of 64196 employees entering NSW coal mining in three representative five-year periods between 1991–2015 were utilised
Results
Although HTLs were lower (better) in more recent years, the results showed clinically significant hearing loss ( ≥ 25dBHL) for older workers, 45–60 years. …