Audiometric notch as a sign of noise induced hearing loss



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Audiometric notch as a sign of noise induced hearing loss.

OBJECTIVES To investigate the relation between different types of exposure to noise and a classic sign of noise induced hearing loss (NIHL), the audiometric notch. METHODS The study sample had exposure to both continuous and impulse noise and was drawn from a population of electrical transmission workers. Audiograms, taken as part of a hearing conservation programme, were read by three clinic...

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Audiometric Notches in Noise-Induced Hearing Loss: 4K versus 6K as Related to Body Mass Index

noise exposed workers. Materials and Methods: This study is a cross-sectional analysis performed at an academic medical center. The pure-tone audiograms and basic personal information of noise-exposed workers were retrieved from the computerized database. The associations between age, height, weight, and BMI and audiometric notches were analyzed. Results: The audiograms of 4,598 ears from 2,299...

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This paper presents noise problems associated with the use of air-turbine drills in dental practice. Two hundred and fifty dentists (male and female) were randomly selected from the faculty of dentistry as well as the dentists who worked private in Tehran. The results indicated that the mean value of sound pressure level produced by the high-speed drills was 69.1 db. Most of the energy from...

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Analysis of audiometric notch as a noise-induced hearing loss phenotype in US youth: data from the National Health And Nutrition Examination Survey, 2005-2010.

OBJECTIVE Bilateral audiometric notch (BN) at 4000-6000 Hz was identified as a noise-induced hearing loss (NIHL) phenotype for genetic association analysis in college-aged musicians. This study analysed BN in a sample of US youth. DESIGN Prevalence of the BN within the study sample was determined and logistic-regression analyses were performed to identify audiologic and other demographic fact...

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In response to Determinants of bilateral audiometric notches in noise-induced hearing loss.

OBJECTIVES/HYPOTHESIS To explore the possible determinants of bilateral audiometric notches in noise-induced hearing loss (NIHL). STUDY DESIGN Prospectively enrolled cohort with cross-sectional analysis. METHODS Male workers (n = 412) with exposure to continuous loud noise (noise exposure level normalized to a nominal 8-hour working day >75 dBA) during work were included in this cohort stud...

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عنوان ژورنال: Occupational and Environmental Medicine

سال: 2001

ISSN: 1351-0711

DOI: 10.1136/oem.58.1.46