Summary
Introduction
The aim of this study is to validate the Voice Handicap Index 10, to be implemented on the Portuguese population.
Material and Methods
Fourty-five subjects were included on the study with vocal complaints and 45 subjects
with no vocal complaints, followed on Otorhinolaryngology external appointment at
Centro Hospitalar Universitário of Porto. The Voice Handicap Index 30 (VHI-30) and The Voice Handicap Index 10 (VHI-10) questionnaires
were applied to the subjects by phone call. Posteriorly, VHI-10 was again applied
in the next two to seven days after the first call. These procedures helped validating
VHI-10 according to its reproducibility, internal consistency and correlation between
questionnaires.
Results
In the group with vocal complaints, we verified a significant statistical correlation
and a strong linear correlation between VHI-30 and VHI-10 (r = 0.915; P< 0.001). The group without vocal complaints has shown a significant statistical correlation
and a moderate linear correlation between VHI-30 and VHI-10 (r = 0.647; P< 0.001). Regarding VHI-10, It was detected a significant statistical difference between
patients with and without vocal complaints.
Discussion
VHI-10 in Portuguese of Portugal was applied to a sample that included, not only subjects
with different ages, but also subjects with and without vocal complaints. Among patients
with vocal complaints, it was included subjects with different diagnosis (organic
and functional pathology). Thus, the sample was representative, and VHI-10 was reliable
and reproducible.
Conclusion
VHI-10 is a valid representation of VHI-30 that helps evaluate the impact of vocal
complaints on life quality, with proven psychometric properties to be implemented
on the Portuguese population.
Keywords
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Article info
Publication history
Published online: November 20, 2020
Accepted:
October 27,
2020
Identification
Copyright
© 2020 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
