Presentation is loading. Please wait.

Presentation is loading. Please wait.

This article and any supplementary material should be cited as follows: Wilson RH, McArdle R. Characteristics of audiometric 4,000 Hz notch (744,553 veterans)

Published byKourtney Besley Modified over 9 years ago

Similar presentations

Presentation on theme: "This article and any supplementary material should be cited as follows: Wilson RH, McArdle R. Characteristics of audiometric 4,000 Hz notch (744,553 veterans)"— Presentation transcript:

1 This article and any supplementary material should be cited as follows: Wilson RH, McArdle R. Characteristics of audiometric 4,000 Hz notch (744,553 veterans) and 3,000, 4,000, and 6,000 Hz notches (539,932 veterans). J Rehabil Res Dev. 2013;50(1):111–132. http://dx.doi.org/10.1682/JRRD.2011.11.0225 Slideshow Project DOI:10.1682/JRRD.2011.11.0225JSP Characteristics of audiometric 4,000 Hz notch (744,553 veterans) and 3,000, 4,000, and 6,000 Hz notches (539,932 veterans) Richard H. Wilson, PhD; Rachel McArdle, PhD

2 This article and any supplementary material should be cited as follows: Wilson RH, McArdle R. Characteristics of audiometric 4,000 Hz notch (744,553 veterans) and 3,000, 4,000, and 6,000 Hz notches (539,932 veterans). J Rehabil Res Dev. 2013;50(1):111–132. http://dx.doi.org/10.1682/JRRD.2011.11.0225 Slideshow Project DOI:10.1682/JRRD.2011.11.0225JSP Aim – Examine prevalence and characteristics of audiograms notched at 4,000 Hz and at 3,000, 4,000, and/or 6,000 Hz. – Extend findings from previous local group of veterans to substantially larger national group of veterans. Relevance – Air-conduction audiograms with 3,000, 4,000, and/or 6,000 Hz thresholds at higher hearing levels than adjacent 2,000 and 8,000 Hz thresholds are known as “notched audiograms.”

3 This article and any supplementary material should be cited as follows: Wilson RH, McArdle R. Characteristics of audiometric 4,000 Hz notch (744,553 veterans) and 3,000, 4,000, and 6,000 Hz notches (539,932 veterans). J Rehabil Res Dev. 2013;50(1):111–132. http://dx.doi.org/10.1682/JRRD.2011.11.0225 Slideshow Project DOI:10.1682/JRRD.2011.11.0225JSP Method Bilateral audiograms from ~1 million veterans were obtained from Department of Veterans Affairs archives. After “cleaning” algorithms, 2 analysis groups formed: – Group 1 (4,000 Hz notch analysis) 744,553 participants (mean age 63.5 yr). – Group 2 (3,000, 4,000, and/or 6,000 Hz notch analysis) 539,932 participants (mean age 62.2 yr).

4 This article and any supplementary material should be cited as follows: Wilson RH, McArdle R. Characteristics of audiometric 4,000 Hz notch (744,553 veterans) and 3,000, 4,000, and 6,000 Hz notches (539,932 veterans). J Rehabil Res Dev. 2013;50(1):111–132. http://dx.doi.org/10.1682/JRRD.2011.11.0225 Slideshow Project DOI:10.1682/JRRD.2011.11.0225JSP Results Group 1: – 77.1% did not have 4,000 Hz notch. Group 2: – 65.3% did not have 3,000, 4,000, or 6,000 Hz notch. – 12.4% had bilateral notches. Left vs right ear: – 11.7% had left ear notches. – 10.7% had right ear notches. Low vs high frequency: – Notches about twice as deep on low-frequency side of notch than high- frequency side. Notch depth about same (23 dB) in both ears.

5 This article and any supplementary material should be cited as follows: Wilson RH, McArdle R. Characteristics of audiometric 4,000 Hz notch (744,553 veterans) and 3,000, 4,000, and 6,000 Hz notches (539,932 veterans). J Rehabil Res Dev. 2013;50(1):111–132. http://dx.doi.org/10.1682/JRRD.2011.11.0225 Slideshow Project DOI:10.1682/JRRD.2011.11.0225JSP Conclusion Finding of more unilateral than bilateral notches prompts at least two hypotheses: – High-frequency notches are caused by multiple factors, including excessive noise exposure. – The ears are differentially sensitive to whatever factors are eventually found to be responsible for high-frequency audiometric notches.

Download ppt "This article and any supplementary material should be cited as follows: Wilson RH, McArdle R. Characteristics of audiometric 4,000 Hz notch (744,553 veterans)"

Similar presentations

This article and any supplementary material should be cited as follows: Levy A, Kopplin K, Gefen A. Computer simulations of efficacy of air-cell- based.

This article and any supplementary material should be cited as follows: Levy A, Kopplin K, Gefen A. Computer simulations of efficacy of air-cell- based.
This article and any supplementary material should be cited as follows: Paquet N, Taillon-Hobson A, Lajoie Y. Fukuda and Babinski-Weil tests: Within-subject.

This article and any supplementary material should be cited as follows: Paquet N, Taillon-Hobson A, Lajoie Y. Fukuda and Babinski-Weil tests: Within-subject.
This article and any supplementary material should be cited as follows: Cameron MH, Huisinga J. Objective and subjective measures reflect different aspects.

This article and any supplementary material should be cited as follows: Cameron MH, Huisinga J. Objective and subjective measures reflect different aspects.
This article and any supplementary material should be cited as follows: Kumar SN, Omar B, Htwe O, Joseph LH, Krishnan J, Jafarzedah Esfehani A, Min LL.

This article and any supplementary material should be cited as follows: Kumar SN, Omar B, Htwe O, Joseph LH, Krishnan J, Jafarzedah Esfehani A, Min LL.
This article and any supplementary material should be cited as follows: Spencer RJ, McGuire AP, Tree HA, Waldron-Perrine B, Pangilinan PH, Bieliauskas.

This article and any supplementary material should be cited as follows: Spencer RJ, McGuire AP, Tree HA, Waldron-Perrine B, Pangilinan PH, Bieliauskas.
This article and any supplementary material should be cited as follows: Barton JE, Sorkin JD. Design and evaluation of prosthetic shoulder controller.

This article and any supplementary material should be cited as follows: Barton JE, Sorkin JD. Design and evaluation of prosthetic shoulder controller.
This article and any supplementary material should be cited as follows: Tang KT, Spence WD, Maxwell D, Stansfield BW. Validity of method to quantify transtibial.

This article and any supplementary material should be cited as follows: Tang KT, Spence WD, Maxwell D, Stansfield BW. Validity of method to quantify transtibial.
This article and any supplementary material should be cited as follows: Tenenbaum S, Shabshin N, Levy A, Herman A, Gefen A. Effects of foot posture and.

This article and any supplementary material should be cited as follows: Tenenbaum S, Shabshin N, Levy A, Herman A, Gefen A. Effects of foot posture and.
This article and any supplementary material should be cited as follows: Eicholtz MR, Caspall JJ, Dao PV, Sprigle S, Ferri A. Test method for empirically.

This article and any supplementary material should be cited as follows: Eicholtz MR, Caspall JJ, Dao PV, Sprigle S, Ferri A. Test method for empirically.
This article and any supplementary material should be cited as follows: Nightingale EJ, Pourkazemi F, Hiller CE. A Systematic review of timed stair tests.

This article and any supplementary material should be cited as follows: Nightingale EJ, Pourkazemi F, Hiller CE. A Systematic review of timed stair tests.
This article and any supplementary material should be cited as follows: Johnson L, De Asha AR, Munjal R, Kulkarni J, Buckley JG. Toe clearance when walking.

This article and any supplementary material should be cited as follows: Johnson L, De Asha AR, Munjal R, Kulkarni J, Buckley JG. Toe clearance when walking.
This article and any supplementary material should be cited as follows: Chang SR, Kobetic R, Triolo RJ. Understanding stand-to-sit maneuver: Implications.

This article and any supplementary material should be cited as follows: Chang SR, Kobetic R, Triolo RJ. Understanding stand-to-sit maneuver: Implications.
This article and any supplementary material should be cited as follows: Kumar A, Karmarkar AM, Collins DM, Souza A, OysterML, Cooper R, Cooper RA. Pilot.

This article and any supplementary material should be cited as follows: Kumar A, Karmarkar AM, Collins DM, Souza A, OysterML, Cooper R, Cooper RA. Pilot.
This article and any supplementary material should be cited as follows: Meier MR, Tucker KA, Hansen AH. Development of inexpensive prosthetic feet for.

This article and any supplementary material should be cited as follows: Meier MR, Tucker KA, Hansen AH. Development of inexpensive prosthetic feet for.
This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different.

This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different.
This article and any supplementary material should be cited as follows: Nitz JC, Perrier J, Cook P. In-vivo trial results of a novel ultrasonic cough stimulator.

This article and any supplementary material should be cited as follows: Nitz JC, Perrier J, Cook P. In-vivo trial results of a novel ultrasonic cough stimulator.
This article and any supplementary material should be cited as follows: Foecking EM, Fargo KN, Coughlin LM, Kim JT, Marzo SJ, Jones KJ. Single session.

This article and any supplementary material should be cited as follows: Foecking EM, Fargo KN, Coughlin LM, Kim JT, Marzo SJ, Jones KJ. Single session.
This article and any supplementary material should be cited as follows: King PR, Donnelly KT, Donnelly JP, Dunnam M, Warner G, Kittleson CJ, Bradshaw CB,

This article and any supplementary material should be cited as follows: King PR, Donnelly KT, Donnelly JP, Dunnam M, Warner G, Kittleson CJ, Bradshaw CB,
This article and any supplementary material should be cited as follows: Seifert AR. Absence of verbal recall or memory for symptom acquisition in fear.

This article and any supplementary material should be cited as follows: Seifert AR. Absence of verbal recall or memory for symptom acquisition in fear.
This article and any supplementary material should be cited as follows: Caspall JJ, Seligsohn E, Dao PV, Sprigle S. Changes in inertia and effect on turning.

This article and any supplementary material should be cited as follows: Caspall JJ, Seligsohn E, Dao PV, Sprigle S. Changes in inertia and effect on turning.

Similar presentations

Ads by Google