Hearing protection devices (HPD) remain a primary method of prevention of noise-induced hearing loss despite their well-known limitations. A three-pronged intervention to increase HPD use was conducted among construction workers and included a baseline hearing loss prevention training, follow-up 'toolbox' (TB) reinforcement trainings, and use of a personal noise level indicator (NLI). A total of 176 subjects on eight sites completed three assessments. Prior to intervention, HPDs were used an average of 34.5% of the time and increased significantly, up about 12.1% after intervention and 7.5% two months after interventions were completed. The increase in HPD use was greatest among the group receiving both TB and NLI interventions; up about 25% from baseline, and this group was about two times more likely to use HPDs than the BL (baseline) training only group. This study demonstrates the mild impact of a well-constructed HPD use training and provides support for the additional use of a personal NLI to increase use of HPDs among construction workers. The most effective procedures for using such instruments require further exploration.
KeywordsHearing protectors; Construction; Hearing conservation training; Noise exposure; Hearing loss prevention; Intervention research Despite wide recognition of the high levels of noise exposure in the construction industry (Sinclair & Haflidson, 1995;Legris & Poulin, 1998;Suter, 2002), the high prevalence of noise-induced hearing loss among long-term construction workers (Daniell et al, 2002;Hong, 2005), and the potential effectiveness of hearing protection devices (HPDs) (Berger et al, 1996;Toivonen et al, 2002), especially when used as part of a comprehensive hearing loss prevention program (HLPP) (Brink et al, 2002;Davies et al, 2008;Rabinowitz et al, 2007), use of HPDs among construction workers remains frustratingly low. Previous work Correspondence: Noah Seixas, Department of Environmental and Occupational Health Sciences, University of Washington, 4225 Roosevelt Way NE, Suite 100, Seattle, WA 98105, USA. nseixas@u.washington.edu.
Declaration of interest:The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.
HHS Public AccessAuthor manuscript Int J Audiol. Author manuscript; available in PMC 2015 September 14.
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Author ManuscriptAuthor Manuscript by our group has observed usage rates less than 25% of the time while workers were exposed to noise levels greater than 85 dBA, the nominal 'high noise' level at which risk of hearing loss increases steeply. Further, when the attenuation achieved by typical foam insert ear plugs is factored in with the time of use and exposure levels at those times, the average reduction in exposure is less than 3 dBA over a full work shift. While both noise exposure level and HPD use appear to vary substantially by trade, all trades observed have a substantial fraction of their full shift exposures above 85 dBA, even after adjusting for HPD us...