Epidemiological study of dysphonia in 4-12 year-old children

Children dysphonia studies have reported an incidence of 4.4 to 30.3%. To establish the prevalence of dysphonia in children, based on the opinion of the parents, acoustic and vocal-perceptual assessments, associated symptoms, risk factors and videolaryngoscopy findings. The parents from 2,000 childr...

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Bibliographic Details
Published in:Brazilian journal of otorhinolaryngology 2011-11, Vol.77 (6), p.736-746
Main Authors: Mendes Tavares, Elaine Lara, Brasolotto, Alcione, Santana, Marcela Ferreira, Padovan, Carlos Alberto, Garcia Martins, Regina Helena
Format: Article
Language:English
Subjects:
Age Distribution
Brazil - epidemiology
Child
Child, Preschool
Dysphonia - diagnosis
Dysphonia - epidemiology
epidemiology
Female
Humans
Laryngoscopy
Male
Original
Prevalence
Severity of Illness Index
Sex Distribution
Surveys and Questionnaires
voice disorders
Voice Quality
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Summary:Children dysphonia studies have reported an incidence of 4.4 to 30.3%. To establish the prevalence of dysphonia in children, based on the opinion of the parents, acoustic and vocal-perceptual assessments, associated symptoms, risk factors and videolaryngoscopy findings. The parents from 2,000 children answered a questionnaire about the vocal quality of their children, and these children were submitted to perceptual vocal, acoustic and videolaryngoscopy assessments. We had 1,007 boys and 993 girls; sporadic symptoms were reported by 206 parents and permanent symptoms were reported by 123. In the perceptual assessment, the G parameter (degree of dysphonia) had a score of 0 in 694 voices; 1 in 1,065 and 2 in 228. There was f0 reduction with age and the remaining acoustic parameters were high in children with a G score of 2. Nodules, thickening and inflammation were the most common in the videolaryngoscopy exams. Parental judgment indicated a prevalence of dysphonia in 6.15%, and perceptual analysis yielded a value of 11.4%. Vocal symptoms were associated with a phonatory overload. sinonasal disorders, vocal abuse and noise were considered relevant risk factors. The acoustic analysis kept a direct association with the perceptual-auditory. Laryngeal lesions were found in the videolaryngoscopy exams, stressing nodules, thickening and inflammation.
ISSN:1808-8694
1808-8686
DOI:10.1590/S1808-86942011000600010