Auditory-Perceptual Voice Quality, Self-Perceived Voice Handicap, and Vocal Fatigue in Street Vendors

Abstract

Objective: In rural labour sectors, individuals who rely heavily on their voices—such as street vendors— are at increased risk of developing voice disorders due to prolonged voice use in noisy environments. Understanding their vocal health needs is essential for developing targeted voice therapy interventions within rural rehabilitation frameworks. This study investigates the auditory-perceptual voice quality, self perceived voice handicap, and vocal fatigue among street vendors in the Cappadocia region, Türkiye. 

Material and Methods: A descriptive, cross-sectional study was conducted with 30 street vendors. Data collection involved the GRBAS scale for perceptual voice evaluation, the Turkish versions of the Voice Handicap Index-10 (VHI-10-TR), and the Vocal Fatigue Index (VFI-TR). Non-parametric tests were used for the statistical analysis. 

Results: Voice problems were reported by 40% of the participants. Significant differences were observed in the GRBAS scores, with higher impairments in grade, breathiness, asthenia, and strain among those with voice problems. Participants with voice issues also scored significantly higher on the VHI-10-TR and VFI-TR, indicating a greater voice-related handicap and vocal fatigue. A moderate positive correlation was found between the VHI-10-TR and VFI-TR scores. 

Conclusion: Street vendors in Cappadocia face significant vocal challenges due to occupational voice use, with notable impacts on perceptual voice quality, vocal fatigue, and quality of life. Preventive measures, including vocal health education and workplace interventions, are essential for reducing these risks.

Keywords

• Voice disorders
• Fatigue
• Self-assessment
• Occupational health
• Vendors

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