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Adaptation and validation of the Italian Pediatric Voice Handicap Index
Antonio Schindler1, Cristiana Tiddia, Chiara Ghidelli
1Department of Clinical Sciences, University of Milan, Milan, Italy. antonio.schindler@unimi.it
Objective:
To evaluate the internal consistency, reliability and clinical validity of the Italian version of the Pediatric Voice Handicap Index (pVHI).
Patients And Methods:
The parents of 30 children with dysphonia and 43 asymptomatic children were included in the study. Each parent was asked to complete the Italian pVHI autonomously. The voice of each child was assessed perceptually through the GRB parameters of the GRBAS scale. Internal consistency was analyzed through Cronbach's α coefficient. For test-retest reliability analysis, the Italian pVHI was filled twice, with a 2-week interval, and the scores obtained were compared through the Pearson correlation test. Clinical validity was assessed comparing the scores obtained in the pathological and the control group using the Mann-Whitney test. Finally, the correlation between pVHI and the perceptual parameters was assessed.
Results:
All of the parents filled in the entire questionnaire autonomously. An optimal internal consistency was found (α = 0.95); the test-retest reliability in the parents of both groups of children was high (r > 0.88). The control group scored significantly lower than the pathological group (p = 0.0001). The pVHI scores positively correlated with perceptual assessment of voice disorders.
Conclusion:
The Italian pVHI is easily administered, highly reproducible, and exhibits excellent clinical validity.
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