+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

The impact of hearing conservation programs on incidence of noise-induced hearing loss in Canadian workers

The impact of hearing conservation programs on incidence of noise-induced hearing loss in Canadian workers

American Journal of Industrial Medicine 51(12): 923-931

Noise exposure remains one of the most ubiquitous of occupational hazards. Hearing conservation program legislation and the programs themselves were designed to lower risk of resulting occupational noise-induced hearing loss, but there has been no broad-based effort to assess the effectiveness of this policy. The incidence of a 10-dB standard threshold shift was examined in a group of Canadian lumber mill workers, using annual audiogram series obtained from the Workers' Compensation Board of British Columbia for the period 1979-1996 and using Cox proportional hazard models. Mean cumulative noise exposure was 98.1 dB-years. The audiograms from 22,376 individuals, among whom there were 2,839 threshold shifts of 10 dB or greater (i.e., a "standard threshold shift"), were retained in multivariable analyses. After adjusting for potential confounders, continuous use of hearing protection, and initial hearing tests later in the study period, the risk for standard threshold shift was reduced by 30%. Risk increased sixfold, however, in those with the highest noise exposure. Hearing conservation programs may be effective in reducing overall incidence of hearing loss. In the absence of noise control at source, however, highly exposed workers remain at unnecessary risk.

(PDF emailed within 0-6 h: $19.90)

Accession: 056367023

Download citation: RISBibTeXText

PMID: 18726988

DOI: 10.1002/ajim.20634

Related references

Prevention of the Evolution of Workers' Hearing Loss from Noise-Induced Hearing Loss in Noisy Environments through a Hearing Conservation Program. International Archives of Otorhinolaryngology 20(1): 43-47, 2016

Noise exposure and hearing conservation practices in an industry with high incidence of workers' compensation claims for hearing loss. American Journal of Industrial Medicine 42(4): 309-317, 2002

Working in noise with a hearing loss: perceptions from workers, supervisors, and hearing conservation program managers. Ear and Hearing 26(6): 529-545, 2005

Occupational noise-induced hearing loss. ACOM Noise and Hearing Conservation Committee. Journal of Occupational Medicine. 31(12): 996-996, 1989

Military noise induced hearing loss: problems in conservation programs. Laryngoscope 78(4): 685-692, 1968

Noise-induced hearing loss in shipyard workers with unilateral conductive hearing loss. Scandinavian Audiology 12(2): 135-140, 1983

Transcultural adaptation of an instrument to evaluate hearing handicap in workers with noise-induced hearing loss. Ciencia & Saude Coletiva 16 Suppl 1: 755-767, 2011

Self-assessment of hearing status and risk of noise-induced hearing loss in workers in a rolling stock plant. International Journal of Occupational Safety and Ergonomics 18(2): 279-296, 2012

Hearing conservation program for marching band members: a risk for noise-induced hearing loss?. American Journal of Audiology 22(1): 26-39, 2014

Noise-induced hearing loss and hearing conservation in mining. Occupational Medicine 54(5): 290-296, 2004

Economic Impact of Hearing Loss and Reduction of Noise-Induced Hearing Loss in the United States. Journal of Speech, Language, and Hearing Research 60(1): 182-189, 2017

Knowledge and attitudes of a group of South African mine workers towards noise induced hearing loss and the use of hearing protective devices. South African Journal of Communication Disorders 41: 37-47, 1994

The impact of hearing impairment, perceptions and attitudes about hearing loss, and noise exposure risk patterns on hearing handicap among farm family members. Aaohn Journal 55(6): 227-234, 2007

Occupational noise induced hearing loss in South African large-scale mines: Exploring Hearing Conservation Programmes as Complex Interventions embedded in a Realist Approach. International Journal of Occupational Safety and Ergonomics 0-24, 2018

Wising Up about Noise-Induced Hearing Loss: An Evaluation of WISE EARS! A National Campaign to Prevent Noise-Induced Hearing Loss. Seminars in Hearing 29(1): 094-101, 2008