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Comparison of Two Dose-response Relationship of Noise Exposure Evaluation Results with High Frequency Hearing Loss

Chinese Medical Journal 2015年第6期128卷 816-821页

作者： Hua Zhang Nan Li Qiu-Ling Yang Wei Qiu Liang-Liang Zhu Li-Yuan Tao Robert I Davis nicholas heyer Yi-Ming Zhao Research Center of Clinical Epidemiology Peking University Third Hospital Beijing 100191 China Dongfeng Institution of Occupational Disease Prevention Shi ~an Hubei 442001 China Auditory Research Laboratory State University of New York at Plattsburgh 107 Beaumont Hall Plattsburgh New York 12901 USA Battelle Centers for Public Health Research and Evaluation Seattle WA USA

Background:Complex noise and its relation to hearing loss are difficult to measure and *** complex noise measurement,individual exposure results may not accurately represent lifetime noise ***,the mean LAeq,8 h values of individuals in the same workgroup were also used to represent LAeq,8h in our *** study aimed to explore whether the mean exposure levels of workers in the same workgroup represented real noise exposure better than individual exposure levels ***:A cross-sectional study was conducted to establish a model for cumulative noise exposure (CNE) and hearing loss in 205 occupational noise-exposed workers who were recruited from two large automobile manufacturers in *** used a personal noise dosimeter and a questionnaire to determine the workers' occupational noise exposure levels and exposure times,respectively.A qualified audiologist used standardized audiometric procedures to assess hearing acuity after at least 16 h of noise ***:We observed that 88.3％ of workers were exposed to more than 85 dB(A) of occupational noise (mean:89.3 ± 4.2 dB(A)).The personal CNE (CNEp) and workgroup CNE (CNEg) were 100.5 ± 4.7 dB(A) and 100.5 ± 2.9 dB(A),*** the binary logistic regression analysis,we established a regression model with high-frequency hearing loss as the dependent variable and CNE as the independent *** Wald value was 5.014 with CNEp as the independent variable and 8.653 with CNEg as the independent ***,we found that the figure for CNEg was more similar to the stationary noise reference than CNEp *** CNEg model was better than the CNEp *** this circumstance,we can measure some subjects instead of the whole workgroup and save ***:In a complex noise environment,the measurements of average noise exposure level of the workgroup can improve the accuracy and save manpower.

关键词： Complex Noise Cumulative Noise Exposure Dose-response Relationship Noise Exposure Evaluation Workgroup

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