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The effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study

OBJECTIVES: To determine the sensitivity and specificity of the whispered voice test (WVT) in detecting hearing loss when administered by practitioners with different levels of experience. DESIGN: Diagnostic accuracy study of WVT, through acoustic analysis of whispers of experienced and inexperience...

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Autores principales: McShefferty, David, Whitmer, William M, Swan, Iain R C, Akeroyd, Michael A
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BMJ Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3641455/
https://www.ncbi.nlm.nih.gov/pubmed/23604349
http://dx.doi.org/10.1136/bmjopen-2012-002394
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author McShefferty, David
Whitmer, William M
Swan, Iain R C
Akeroyd, Michael A
author_facet McShefferty, David
Whitmer, William M
Swan, Iain R C
Akeroyd, Michael A
author_sort McShefferty, David
collection PubMed
description OBJECTIVES: To determine the sensitivity and specificity of the whispered voice test (WVT) in detecting hearing loss when administered by practitioners with different levels of experience. DESIGN: Diagnostic accuracy study of WVT, through acoustic analysis of whispers of experienced and inexperienced practitioners (experiment 1) and behavioural validation of these recordings (experiment 2). SETTING: Research institute with a pool of patients sourced from local clinics in the Greater Glasgow area. PARTICIPANTS: 22 people had their whispers recorded and analysed in experiment 1; 4 older experienced (OE), 4 older inexperienced (OI) and 14 younger inexperienced (YI). In experiment 2, 73 people (112 individual ears) took part in a digit recognition task using 2 OE and 2 YI whisperers from experiment 1. MAIN OUTCOME MEASURES: Average level (dB sound pressure level) across frequency, average level across all utterances (dB A) and within/across-digit deviation (dB A) for experiment 1. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of WVT for experiment 2. RESULTS: In experiment 1, OE whisperers were 8–10 dB more intense than inexperienced whisperers across all whispered utterances. Variability was low and comparable regardless of age or experience. In experiment 2, at an optimum threshold of 40 dB HL, sensitivity and specificity were 63% (95% CI of 58% to 68%) and 93% (92% to 94%), respectively, for OE whisperers. PPV was 56% (51% to 61%), NPV was 95% (94% to 96%). For YI whisperers at an optimum threshold of 29 dB HL, sensitivity and specificity were 80% (78% to 82%) and 52% (50% to 55%), respectively. PPV was 65% (63% to 67%) and NPV was 70% (67% to 72%). CONCLUSIONS: WVT is an effective screening test, providing the level of the whisperer is considered when setting the test's hearing-loss criterion. Possible implications are voice measurement while training for inexperienced whisperers.
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spelling pubmed-36414552013-05-07 The effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study McShefferty, David Whitmer, William M Swan, Iain R C Akeroyd, Michael A BMJ Open Diagnostics OBJECTIVES: To determine the sensitivity and specificity of the whispered voice test (WVT) in detecting hearing loss when administered by practitioners with different levels of experience. DESIGN: Diagnostic accuracy study of WVT, through acoustic analysis of whispers of experienced and inexperienced practitioners (experiment 1) and behavioural validation of these recordings (experiment 2). SETTING: Research institute with a pool of patients sourced from local clinics in the Greater Glasgow area. PARTICIPANTS: 22 people had their whispers recorded and analysed in experiment 1; 4 older experienced (OE), 4 older inexperienced (OI) and 14 younger inexperienced (YI). In experiment 2, 73 people (112 individual ears) took part in a digit recognition task using 2 OE and 2 YI whisperers from experiment 1. MAIN OUTCOME MEASURES: Average level (dB sound pressure level) across frequency, average level across all utterances (dB A) and within/across-digit deviation (dB A) for experiment 1. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of WVT for experiment 2. RESULTS: In experiment 1, OE whisperers were 8–10 dB more intense than inexperienced whisperers across all whispered utterances. Variability was low and comparable regardless of age or experience. In experiment 2, at an optimum threshold of 40 dB HL, sensitivity and specificity were 63% (95% CI of 58% to 68%) and 93% (92% to 94%), respectively, for OE whisperers. PPV was 56% (51% to 61%), NPV was 95% (94% to 96%). For YI whisperers at an optimum threshold of 29 dB HL, sensitivity and specificity were 80% (78% to 82%) and 52% (50% to 55%), respectively. PPV was 65% (63% to 67%) and NPV was 70% (67% to 72%). CONCLUSIONS: WVT is an effective screening test, providing the level of the whisperer is considered when setting the test's hearing-loss criterion. Possible implications are voice measurement while training for inexperienced whisperers. BMJ Publishing Group 2013-04-18 /pmc/articles/PMC3641455/ /pubmed/23604349 http://dx.doi.org/10.1136/bmjopen-2012-002394 Text en Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non commercial and is otherwise in compliance with the license. See: http://creativecommons.org/licenses/by-nc/3.0/ and http://creativecommons.org/licenses/by-nc/3.0/legalcode
spellingShingle Diagnostics
McShefferty, David
Whitmer, William M
Swan, Iain R C
Akeroyd, Michael A
The effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study
title The effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study
title_full The effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study
title_fullStr The effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study
title_full_unstemmed The effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study
title_short The effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study
title_sort effect of experience on the sensitivity and specificity of the whispered voice test: a diagnostic accuracy study
topic Diagnostics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3641455/
https://www.ncbi.nlm.nih.gov/pubmed/23604349
http://dx.doi.org/10.1136/bmjopen-2012-002394
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