کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5124449 | 1378443 | 2017 | 6 صفحه PDF | دانلود رایگان |
SummaryBackgroundPsychosocial impact of dysphonia in people with Parkinson disease (PD) has been described with the Voice Handicap Index (VHI); however, its psychometric properties when applied in this population are not described.ObjectiveThe objective of this study was to examine the psychometric properties of the VHI in people with PD.MethodsA cross-sectional study of 151 subjects without cognitive impairment (90 people with PD and 61 controls) was carried out. The VHI was applied along with clinician-based (Mini Mental State Examination, Hoehn and Yahr staging, and Movement Disorder Society-Unified Parkinson's Disease Rating Scale) and patient-based (self-rated voice severity) outcome measures. The psychometric properties of the VHI analyzed were the feasibility, reliability, and construct validity.ResultsThe average age of the PD population studied was 67 years; 51% had a primary level of education and 81% were retired. On average, they had disease onset duration of 11 years, a mild disease stage, mild to moderate global motor disability and impairment, and a normal to mild self-rated voice severity. The psychometric attributes of the VHI demonstrated that the questionnaire is feasible (missing data less than 1%), reliable (Cronbach αâ>â0.9), and valid (71.5% of the total variance is explained by five factors, correlates with voice severity, PD disability, and impairment, and differentiates subjects with PD from subjects without PD).ConclusionThe VHI is a reliable and valid tool that can be recommended for the population under study although further work is required to investigate its utility in advanced stages of disease.
Journal: Journal of Voice - Volume 31, Issue 2, March 2017, Pages 258.e13-258.e18