ArticleThe South African journal of communication disorders = Die Suid-Afrikaanse tydskrif vir Kommunikasieafwykings2025
Incidence and nature of functional voice disorders.
Article in The South African journal of communication disorders = Die Suid-Afrikaanse tydskrif vir Kommunikasieafwykings, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundFunctional voice disorders (FVDs) result from inefficient vocal use without an organic cause and have an underreported incidence.
objectivesThis study aimed to investigate the incidence and nature of FVDs among treatment-seeking patients at a private interdisciplinary voice clinic in Pretoria, South Africa.
methodA retrospective quantitative design was used to analyse data from 86 patients diagnosed with FVDs between January 2017 and July 2022. Descriptive and inferential statistics were applied.
resultsThe incidence rate of FVDs was 16.67% among 516 patients with voice disorders. The primary diagnosis was muscle tension dysphonia (MTD), affecting 80.2% of cases. The most common secondary diagnosis was laryngeal pharyngeal reflux (LPR) at 39.5%. Hoarseness was the most reported symptom. No significant differences were found between occupational and non-occupational voice users.
conclusionThe findings clarify the incidence and nature of FVDs in the South African context.Contribution: It underscores the need for greater awareness of FVDs in low- and middle-income countries (LMICs) as well as future research on prevention and management strategies.
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