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Notched Audiograms and Noise Exposure History in Older Adults
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2811687/#:~:text=This%20may%20be%20reflected%20in%20the%20audiogram%20as,clinical%20sign%20of%20NIHL%20%28McBride%20%26%20Williams%2C%202001%29.
Audiogram notches in noise-exposed workers
https://pubmed.ncbi.nlm.nih.gov/17086083/
Audiogram notch metrics can agree with expert clinical consensus and assist in the surveillance of noise-exposed workers. Audiogram notches in noise-exposed workers Ear Hear .
Notched Audiograms and Noise Exposure History in …
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2811687/
This may be reflected in the audiogram as hearing thresholds that reach a maximum between 3–6 kHz and then return toward the normal level at higher frequencies, forming a noise notch. A notched audiogram, together with a positive history of noise exposure, has been gradually accepted as a clinical sign of NIHL ( McBride & Williams, 2001 ).
The prevalence of notched audiograms in a cross …
https://pubmed.ncbi.nlm.nih.gov/25470371/
The prevalences of three types of notched audiograms, Coles notch, notch index, and 4 kHz notch, were computed, in relation to age, sex, and occupational noise exposure. Results: Coles notch in either ear was found in 63% of the male railway maintenance workers, exposed to noise levels of 75 to 90 dB(A), compared with 53% of the non-noise exposed (<70 dB(A)) traffic …
Five Myths in Assessing the Effects of Noise on Hearing ...
https://www.audiologyonline.com/articles/five-myths-in-assessing-effects-1292
Characteristics of the audiometric 4,000 Hz notch …
https://www.rehab.research.va.gov/jour/2013/501/wilson501.html
Audiometric Notch and Extended High-Frequency …
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5771058/
Hearing impairment due to exposure to loud noise is increasingly common nowadays. The typical early sign of hearing impairment due to noise exposure is an audiometric notch at the frequencies of 3, 4, and 6 kHz with recovery at 8 kHz, which is identified by the Niskar criteria. In the past decades, many studies have investigated occupational noise exposure and hearing, and its …
Noise induced hearing loss - audiogram - Audiometric ...
https://www.audiometrictestingperth.com.au/noise-induced-hearing-loss/
The results of a hearing test, or audiometric test, are recorded on an audiogram. An audiogram is used to chart the results according to loudness (dB) and pitch (Hz).On an audiogram, noise induced hearing loss (NIHL) will usually be seen first as a slight loss of hearing in the 4 kHz region. This dip in hearing is more commonly known as a ‘notch’ in the audiogram.
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