The role of audiometric data management in hearing loss prevention: audiometric data management.
Public Domain
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1999/10/28
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By Franks J
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Description:In support of the Mine Safety and Health Administration's development of noise control and hearing loss prevention regulations, NIOSH reviewed audiograms for coal miners and metal/nonmetal miners. NIOSH had also been reviewing the 22 databases that were collected under contract for NIOSH in support of the revision of the NIOSH Noise criteria document (these are often referred to as the ANSI databases). The initial databases included more than 22,000 audiograms for coal miners, 40,000 for metal/nonmetal miners, and 158,000 audiograms from the ANSI databases. These databases were longitudinal containing as few as two audiograms and as many as 22 audiograms per person. Initial review of the audiograms revealed many problems. Audiograms for some persons were inconsistent from year to year. In other cases it was clear that the audiometric thresholds at 500 and 1000 Hz were elevated due to background noise levels in the test environment. There were occurrences of inter-ear differences at the limits of inter-aural attenuation. In other cases, differences in adjacent frequency thresholds were very large. All of these occurrences were very likely due to error in the administration of the audiogram or the recording of thresholds.
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Pages in Document:41-42
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NIOSHTIC Number:nn:20024847
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Citation:Proceedings: Best Practices in Hearing Loss Prevention, October 28, 1999, Detroit, Michigan. Washington, DC: National Institute for Occupational Safety and Health, 1999 Oct; :41-42
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Federal Fiscal Year:2000
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Peer Reviewed:False
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Source Full Name:Proceedings: best practices in hearing loss prevention, October 28, 1999, Detroit, Michigan
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Main Document Checksum:urn:sha-512:b5bdb558d418205ef61709e332bc8799f7e1c62cdd8620d548fd58e8e7807c22add1950228215c6674665ec97a4cdbbcac038919a48aca15125b72a355571663
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