Journal of voice : official journal of the Voice Foundation · 2026
Towards a Parkinson's Disease-Adapted Short Form of the French Voice Handicap Index: VHIPARK-9.
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Roland Virginie, Huet Kathy
Аннотация
OBJECTIVES: This study examined the psychometric properties of the French Voice Handicap Index-30 in French-speaking people with Parkinson's disease and explored a preliminary nine-item short form.
METHODS: Seventy-nine participants with idiopathic Parkinson's disease completed the VHI-30. Feasibility, internal consistency, test-retest reliability, construct validity, and internal structure were examined. Forty participants completed the VHI-30 again after 7 days. Construct validity was assessed using visual analog ratings of voice and communication, proxy-reported voice assessment and self-assessment of interaction disorders. Exploratory factor analysis (EFA) was used to explore item structure and select candidate items for a preliminary short form of VHI.
RESULTS: The VHI-30 showed no missing data, excellent internal consistency, and good test-retest reliability. Construct validity was supported by significant correlations with self-reported and proxy-reported communication measures. Factor-retention criteria supported a multidimensional structure. A two-factor oblique solution was retained based on the MAP criterion, interpretability, and factorial stability. Nine items were selected according to their factor loadings, communalities, corrected item-rest correlations, response distributions, and inter-item redundancy. The resulting VHIPARK-9 showed high internal consistency, good test-retest reliability, and strong associations with both the VHI-30 total score and the non-retained VHI items.
CONCLUSION: The French VHI-30 appears reliable and valid for assessing perceived voice handicap in people with Parkinson's disease. The proposed VHIPARK-9 is a promising preliminary short form, but independent validation is required before clinical implementation.
METHODS: Seventy-nine participants with idiopathic Parkinson's disease completed the VHI-30. Feasibility, internal consistency, test-retest reliability, construct validity, and internal structure were examined. Forty participants completed the VHI-30 again after 7 days. Construct validity was assessed using visual analog ratings of voice and communication, proxy-reported voice assessment and self-assessment of interaction disorders. Exploratory factor analysis (EFA) was used to explore item structure and select candidate items for a preliminary short form of VHI.
RESULTS: The VHI-30 showed no missing data, excellent internal consistency, and good test-retest reliability. Construct validity was supported by significant correlations with self-reported and proxy-reported communication measures. Factor-retention criteria supported a multidimensional structure. A two-factor oblique solution was retained based on the MAP criterion, interpretability, and factorial stability. Nine items were selected according to their factor loadings, communalities, corrected item-rest correlations, response distributions, and inter-item redundancy. The resulting VHIPARK-9 showed high internal consistency, good test-retest reliability, and strong associations with both the VHI-30 total score and the non-retained VHI items.
CONCLUSION: The French VHI-30 appears reliable and valid for assessing perceived voice handicap in people with Parkinson's disease. The proposed VHIPARK-9 is a promising preliminary short form, but independent validation is required before clinical implementation.