Noise-induced hearing loss

McReynolds, Michael C.

doi:10.1016/j.amj.2004.12.005

Cited by 31 publications

(19 citation statements)

References 4 publications

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“…This study showed that previous earplug use was not associated with hearing loss. The prevention of hearing loss could be successful by consistently using ear-plugs [24][25][26] . As the subjects in this study had not used an earplug since they started working in these factories, hearing loss could developed.…”

Section: Discussionmentioning

confidence: 99%

Occupational noise-induced hearing loss in auto part factory workers in welding units in Thailand

Sriopas

Chapman

Sutammasa

et al. 2017

Journal of Occupational Health

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Objectives: Most workers in auto part factories in Thailand are usually exposed to excessive noise in their workplace. This study aimed to assess the level of occupational noise-induced hearing loss and investigate risk factors causing hearing loss in auto part factory workers in the welding units in Thailand.Methods: This was a cross-sectional study. One hundred eighty subjects were recruited from 356 workers in the welding unit of three factories. Sixty eligible subjects in each factory were selected by systemic random sampling. The subjects were interviewed using a face-to-face questionnaire. Noise exposure levels and audiograms were measured by a noise dosimeter and an audiometer, respectively.Results: The findings confirmed that noise exposure levels of 86-90 dB (A) and exceeding 90 dB (A) significantly increased the risk of hearing loss in either ear. A noise exposure level exceeding 90 dB (A) significantly increased the prevalence of hearing loss in both ears. Regarding, a 10-pack-year smoking history increased the prevalence of hearing loss in either ear or both ears. In addition, subjects with employment duration exceeding 10 years significantly developed hearing loss in either ear.Conclusions: The engineering control or personal control by wearing hearing protection device should be used to decrease noise exposure levels lower than 85 dB (A) for 8 h. Moreover, if the exposure level reaches 85 dB (A) for 8 h, the employer needs to implement a hearing conservation program in the workplace.

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Section: Discussionmentioning

confidence: 99%

Occupational noise-induced hearing loss in auto part factory workers in welding units in Thailand

Sriopas

Chapman

Sutammasa

et al. 2017

Journal of Occupational Health

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“…A number of studies investigating potential pathogenic effects of prolonged occupational noise exposure focused on auditory and cardiovascular effects (McReynolds, 2005;Jones, 1996;Sataloff and Sataloff, 1993;, Tomei et al, 2000). There are instead few data on the effect of workplace noise exposure on central nervous system, even if stress, cognitive deficit, anxiety and depression are often subjectively reported.…”

Section: Introductionmentioning

confidence: 98%

Environmental noise-exposed workers: Event-related potentials, neuropsychological and mood assessment

Chiovenda

Pasqualetti

Zappasodi

et al. 2007

International Journal of Psychophysiology

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“…Since the employees were exposed to different noise levels during different employment periods, the noise exposure level averaged over each worker's total time of exposure was calculated using the following formula: (1) where: N − is the total number of various time intervals/workplaces/jobs; L Ex i -is the equivalent continuous A-weighted sound pressure level normalized to a nominal 8-h working day in the time interval/workplace/job i, in dB; T i -is the duration of time interval i, in years. The averaged individual levels of noise exposure ranged from 68.3 to 90.3 dB (A); mean L Ex,8h = 84.5 ± 3.0 dB (A).…”

Section: Assessment Of Exposure To Noisementioning

confidence: 99%

“…It has been estimated that around 30 million people are exposed to unsafe noise levels at work [1]. Most of the countries adopted the A-filter-weighted sound pressure level system and the equal energy principle for assessing and limiting noise exposure [2].…”

Section: Introductionmentioning

confidence: 99%

Individual Susceptibility to Noise-Induced Hearing Loss: Choosing an Optimal Method of Retrospective Classification of Workers into Noise-Susceptible and Noise-Resistant Groups

Śliwińska-Kowalska¹,

Dudarewicz²,

Kotyło³

et al. 2006

International Journal of Occupational Medicine and Environmental Health

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Objectives: Individual susceptibility to noise-induced hearing loss (NIHL) depends on the interaction between intrinsic and environmental factors. To proceed with the study on NIHL susceptibility genes an appropriate selection of workers susceptible and resistant to noise is crucial. The aim of the study was to compare four different methods of subject classification by the susceptibility to NIHL in a group of 949 workers of an electric power plant exposed to steady-state noise at the workplace. Materials and Methods: One method based the classification of the workers on the international reference standard ISO 1999ISO :1990; from the entire group of workers, 10% of the subjects with the worst hearing thresholds (HT) in the model were categorized as susceptible to NIHL, whereas 10% of the subjects with the best HT were categorized as resistant to noise. According to three other methods, the entire group of workers was first divided into subgroups by age, duration of employment and the level of noise, and then 10% of the subjects at each HT extreme were selected. Results: The first classification allowed to achieve an excellent separation between HT of the susceptible and resistant subgroups. The susceptible subgroup was significantly younger than the resistant one, showed a shorter duration of employment and a lower level of noise exposure, which is in line with the definition of increased vulnerability to NIHL. The three other methods produced poorer separation of HT with smaller or no gap between HT values in subgroups. Conclusions: The selection of subjects from the entire worker population of a given industry based on the ISO 1999:1990 standard can be regarded as the most reliable method of classification of noise-susceptible and noise-resistant workers to be used in the future genetic studies on NIHL susceptibility genes.

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Noise-induced hearing loss

Cited by 31 publications

References 4 publications

Occupational noise-induced hearing loss in auto part factory workers in welding units in Thailand

Occupational noise-induced hearing loss in auto part factory workers in welding units in Thailand

Environmental noise-exposed workers: Event-related potentials, neuropsychological and mood assessment

Individual Susceptibility to Noise-Induced Hearing Loss: Choosing an Optimal Method of Retrospective Classification of Workers into Noise-Susceptible and Noise-Resistant Groups

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