Characteristics of the Voice of Dysphonic School Children from 4:0 to 7:11 Years Old.

Characteristics of the Voice of Dysphonic School Children from 4:0 to 7:11 Years Old.:

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Characteristics of the Voice of Dysphonic School Children from 4:0 to 7:11 Years Old.

J Voice. 2019 Dec 27;:

Authors: Hoffmann CF, Cielo CA

Abstract

BACKGROUND: Childhood dysphonia is frequent and has many origins, with the most common initial symptom being the altered vocal quality.

OBJECTIVE: Describe and correlate the auditory-perceptual and acoustic characteristics of the voice, and the maximum phonation time (MPT), of dysphonic schoolchildren from private and public schools from 4:0 to 7:11 years old, female and male.

METHODS: MPT, acoustic (Multi-Dimensional Voice Program Advanced and Real Time Spectrogram), and auditory-perceptual (Consensus Auditory-Perceptual Evaluation of Voice) evaluations of 115 schoolchildren were statistically analyzed.

RESULTS: Auditory-perceptual parameters values were classified as mild, and MPT values were reduced, in most children. Fundamental frequency and Jitt values decreased significantly with age; MPT/i/ increased significantly with age. Relative average perturbation, voice turbulence index (VTI), and number of sub-harmonic segments values were significantly higher in 4:0 years old children. The number of unvoiced segments was higher in 6:0 years old children. Shimmer percent was higher in 7:0 years old children. There were negative correlations between the high frequency spectrographic tracing color intensity and the vocal strain; the VTI and the MPT; the degree of unvoiced segments and the MPT. There was a positive correlation between the smoothed pitch period perturbation quotient and the roughness.

CONCLUSION: In dysphonic schoolchildren, auditory-perceptual parameters were moderate, MPT was reduced, several acoustic parameters were altered, and these vocal characteristics improved with age.

PMID: 31889646 [PubMed - as supplied by publisher]