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An assessment of the reproducibility of combined glottography in a clinical setting

Lookup NU author(s): Professor Paul Carding, Sean Carrie, Andrew Welch

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Abstract

Although combined glottography has potential as a clinical tool, it has had limited use in the monitoring of laryngeal function before and after treatment. There is no data about the standardization nor reproducibility of the procedure. An indication of the reproducibility of combined glottography is paramount if changes in laryngeal function are to be measured accurately. Using a standardized technique, two complimentary studies examined the reproducibility of combined glottography within one sitting (Study 1) and over time (Study 2). The components of variance were analysed (ANOVA). In Study 1 the variance under controlled conditions for Open Quotient (OQ) and Speed Quotient (SQ) was only 13% and 18% respectively of the total, whilst in Study 2 the variance over time for OQ and SQ was 55% and 58% respectively. Under controlled conditions combined glottography is a reproducible technique.


Publication metadata

Author(s): Livesey JR, Carding PN, Carrie S, Kelly PJ, Welch AR, Birchall JP

Publication type: Article

Publication status: Published

Journal: Clinical Otolaryngology

Year: 1993

Volume: 18

Issue: 6

Pages: 500-504

Print publication date: 01/12/1993

Online publication date: 02/08/2007

ISSN (print): 1749-4478

ISSN (electronic): 1749-4486

Publisher: Wiley-Blackwell Publishing Ltd.

URL: https://doi.org/10.1111/j.1365-2273.1993.tb00623.x


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