Summary
Objective
To analyze the prevalence of work-related voice disorders (WRVD) among the voice professionals.
Methods
The study protocol was registered in PROSPERO (CRD42021250121). The search was performed
in the Embase, Lilacs, Medline, SCOPUS, and Web of Sciences databases. There were
no limitations to the year of publication and the search included observational studies
which reported data on the prevalence of dysphonia in voice professionals measured
through vocal complaints, vocal self-assessment, the auditory-perceptual judgment
of the voice, and laryngoscopy examinations. The critical appraisal instrument for
studies reporting prevalence data was used to analyze the risk of bias of the studies.
Data analysis was performed using Jamovi and R software with a significance level
of 5%.
Results
The initial search identified 561 articles, 73 of which were finally included and
analyzed. The total number of participants was 63,126. Dysphonia was diagnosed in
45,996 participants based on a vocal complaint, 12,843 using vocal self-assessment,
1,254 using the auditory-perceptual judgment, and 1,683 using laryngoscopies. The
prevalence of total dysphonia was 44.0 (95% CI 38.47; 49.69). The prevalence of vocal
complaints was 43.9% (95% CI 37.37; 50.52), 42.5% (95% CI 28.57; 57.08) for self-assessment,
53.0% (95% CI 29.87; 77.19) for auditory-perceptual judgment, and 36.9% (95% CI 18.62;
57.08) for laryngoscopic examination. In the auditory-perceptual judgment, voice professionals
in class 3 (moderate quality, high demand) had a higher prevalence of dysphonia than
those in class 4 (moderate quality, moderate demand) (P = 0.04). In the auditory-perceptual judgment (P = 0.04), there was a higher prevalence of dysphonia in teachers than among other
voice professionals non-teachers, and in the laryngeal evaluation, no differences
were found between professionals (P = 0.8).
Conclusion
There was a high prevalence of dysphonia in voice professionals, especially in the
detection by auditory-perceptual judgment. High vocal demand and being a teacher influenced
the increase in the prevalence of WRVD.
Key Words
Abbreviations:
SRM (Sistematic Review and Meta-analysis), WRVD (Work-Related Voice Disorder)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: August 31, 2022
Accepted:
July 29,
2022
Publication stage
In Press Corrected ProofIdentification
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© 2022 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
