The Relationship Between Auditory-Perceptual Rating Scales and Objective Voice Measures in Children With Voice
Robert Brinton Fujiki1, Susan L Thibeault1
1Department of Surgery, University of Wisconsin-Madison.
Abstract:
Purpose The purpose of this study was to determine concurrent validity of the Grade, Roughness, Breathiness, Asthenia, and Strain (GRBAS) and Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V) auditory-perceptual scales in children with voice disorders. A secondary purpose was to determine correlation between the GRBAS, CAPE-V, and objective voice measures. Method GRBAS and CAPE-V ratings and acoustic and aerodynamic measures were collected from the University of Wisconsin-Madison Voice and Swallow Outcomes Database. Correlations between CAPE-V and GRBAS ratings were calculated for overall severity of dysphonia, roughness, breathiness, and strain. Correlations between auditory-perceptual voice ratings and objective voice measures were also examined. Results One hundred thirty GRBAS and CAPE-V auditory-perceptual ratings were significantly correlated for overall severity, roughness, breathiness, and strain. r 2 values were highest for overall severity of dysphonia (r 2 = .75) and lowest for strain (r 2 = .54). CAPE-V and GRBAS ratings were largely associated with similar acoustic and aerodynamic measures. The highest correlations were observed for auditory-perceptual ratings of breathiness and jitter% (CAPE-V r 2 = .44, GRBAS r 2 = .44), shimmer% (CAPE-V r 2 = .45, GRBAS r 2 = .45), noise-to-harmonic ratio (CAPE-V r 2 = .42, GRBAS r 2 = .40), fundamental frequency (CAPE-V r 2 = .47, GRBAS r 2 = .44), and maximum phonation time (CAPE-V r 2 = .56, GRBAS r 2 = .51). Akaike information criterion values indicated that CAPE-V ratings were more strongly correlated with objective voice measures than GRBAS ratings. Conclusions CAPE-V and GRBAS scales have concurrent validity in children with voice disorders. CAPE-V ratings are more strongly correlated with acoustic and aerodynamic voice measures.
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