The use of the kurtosis metric in the evaluation of occupational hearing loss in workers in China: Implications for hearing risk assessment
This study examined: (1) the value of using the statistical metric, kurtosis [β(t)], along with an energy metric to determine the hazard to hearing from high level industrial noise environments, and (2) the accuracy of the International Standard Organization (ISO-1999:1990) model for median noise-in...
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2012-01-01
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doaj-197ab63da4ed4224bc9eeb1e67492d082020-11-25T01:18:29ZengWolters Kluwer Medknow PublicationsNoise and Health1463-17411998-40302012-01-01146133034210.4103/1463-1741.104903The use of the kurtosis metric in the evaluation of occupational hearing loss in workers in China: Implications for hearing risk assessmentRobert I DavisWei QiuNicholas J HeyerYiming ZhaoM S Qiuling YangNan LiLiyuan TaoLiangliang ZhuLin ZengDaohua YaoThis study examined: (1) the value of using the statistical metric, kurtosis [β(t)], along with an energy metric to determine the hazard to hearing from high level industrial noise environments, and (2) the accuracy of the International Standard Organization (ISO-1999:1990) model for median noise-induced permanent threshold shift (NIPTS) estimates with actual recent epidemiological data obtained on 240 highly screened workers exposed to high-level industrial noise in China. A cross-sectional approach was used in this study. Shift-long temporal waveforms of the noise that workers were exposed to for evaluation of noise exposures and audiometric threshold measures were obtained on all selected subjects. The subjects were exposed to only one occupational noise exposure without the use of hearing protection devices. The results suggest that: (1) the kurtosis metric is an important variable in determining the hazards to hearing posed by a high-level industrial noise environment for hearing conservation purposes, i.e., the kurtosis differentiated between the hazardous effects produced by Gaussian and non-Gaussian noise environments, (2) the ISO-1999 predictive model does not accurately estimate the degree of median NIPTS incurred to high level kurtosis industrial noise, and (3) the inherent large variability in NIPTS among subjects emphasize the need to develop and analyze a larger database of workers with well-documented exposures to better understand the effect of kurtosis on NIPTS incurred from high level industrial noise exposures. A better understanding of the role of the kurtosis metric may lead to its incorporation into a new generation of more predictive hearing risk assessment for occupational noise exposure.http://www.noiseandhealth.org/article.asp?issn=1463-1741;year=2012;volume=14;issue=61;spage=330;epage=342;aulast=DavisGaussian noisekurtosisnoise-induced permanent threshold shiftnon-Gaussian noise |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Robert I Davis Wei Qiu Nicholas J Heyer Yiming Zhao M S Qiuling Yang Nan Li Liyuan Tao Liangliang Zhu Lin Zeng Daohua Yao |
spellingShingle |
Robert I Davis Wei Qiu Nicholas J Heyer Yiming Zhao M S Qiuling Yang Nan Li Liyuan Tao Liangliang Zhu Lin Zeng Daohua Yao The use of the kurtosis metric in the evaluation of occupational hearing loss in workers in China: Implications for hearing risk assessment Noise and Health Gaussian noise kurtosis noise-induced permanent threshold shift non-Gaussian noise |
author_facet |
Robert I Davis Wei Qiu Nicholas J Heyer Yiming Zhao M S Qiuling Yang Nan Li Liyuan Tao Liangliang Zhu Lin Zeng Daohua Yao |
author_sort |
Robert I Davis |
title |
The use of the kurtosis metric in the evaluation of occupational hearing loss in workers in China: Implications for hearing risk assessment |
title_short |
The use of the kurtosis metric in the evaluation of occupational hearing loss in workers in China: Implications for hearing risk assessment |
title_full |
The use of the kurtosis metric in the evaluation of occupational hearing loss in workers in China: Implications for hearing risk assessment |
title_fullStr |
The use of the kurtosis metric in the evaluation of occupational hearing loss in workers in China: Implications for hearing risk assessment |
title_full_unstemmed |
The use of the kurtosis metric in the evaluation of occupational hearing loss in workers in China: Implications for hearing risk assessment |
title_sort |
use of the kurtosis metric in the evaluation of occupational hearing loss in workers in china: implications for hearing risk assessment |
publisher |
Wolters Kluwer Medknow Publications |
series |
Noise and Health |
issn |
1463-1741 1998-4030 |
publishDate |
2012-01-01 |
description |
This study examined: (1) the value of using the statistical metric, kurtosis [β(t)], along with an energy metric to determine the hazard to hearing from high level industrial noise environments, and (2) the accuracy of the International Standard Organization (ISO-1999:1990) model for median noise-induced permanent threshold shift (NIPTS) estimates with actual recent epidemiological data obtained on 240 highly screened workers exposed to high-level industrial noise in China. A cross-sectional approach was used in this study. Shift-long temporal waveforms of the noise that workers were exposed to for evaluation of noise exposures and audiometric threshold measures were obtained on all selected subjects. The subjects were exposed to only one occupational noise exposure without the use of hearing protection devices. The results suggest that: (1) the kurtosis metric is an important variable in determining the hazards to hearing posed by a high-level industrial noise environment for hearing conservation purposes, i.e., the kurtosis differentiated between the hazardous effects produced by Gaussian and non-Gaussian noise environments, (2) the ISO-1999 predictive model does not accurately estimate the degree of median NIPTS incurred to high level kurtosis industrial noise, and (3) the inherent large variability in NIPTS among subjects emphasize the need to develop and analyze a larger database of workers with well-documented exposures to better understand the effect of kurtosis on NIPTS incurred from high level industrial noise exposures. A better understanding of the role of the kurtosis metric may lead to its incorporation into a new generation of more predictive hearing risk assessment for occupational noise exposure. |
topic |
Gaussian noise kurtosis noise-induced permanent threshold shift non-Gaussian noise |
url |
http://www.noiseandhealth.org/article.asp?issn=1463-1741;year=2012;volume=14;issue=61;spage=330;epage=342;aulast=Davis |
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