Evaluation of the Psychometric Properties of a Newly Developed Chinese Screening Tool for Speech Disorders in Patients With Parkinson’s Disease

Chi Lin Chen, Ching Huang Lin, Chen San Su, Hsiang Chun Cheng, Li Mei Chen, Rong Ju Cherng

Research output: Contribution to journalArticlepeer-review

Abstract

The study aimed to analyze the psychometric properties of a newly developed Chinese screening tool, the Chinese Version of the Speech Disorders in Parkinson’s Disease Questionnaire (SDPD-C). The SDPD-C contains a 24-item questionnaire with four assessment domains. Overall, 93 patients with idiopathic Parkinson’s disease (PD) (age 70.1 ± 8.9 years) and 76 healthy older adults (age 67.2 ± 8.1 years) participated in the psychometric analysis study. The internal consistency of the SDPD-C was.91 (four dimensions:.69–.85), and test-retest reliability was.91 (four dimensions:.85–.88). The SDPD-C was highly correlated with the Voice Handicap Index-10 and Movement Disorder Society-Unified Parkinson’s Disease Rating Scale II 2.1 (r =.83 and.78, respectively). The SDPD-C scores also differed significantly between stages 1 and 4 of the Hoehn and Yahr Scale (p <.05). The area under the receiver operating characteristic curve was.955 (95% confidence interval,.927–.983; asymptotic significance p <.001), and the optimal cut-off score of this study was 36, with a sensitivity of.849 and specificity of.947. The results indicate that SDPD-C showed good reliability, validity, accuracy, and discrimination. It can be used as a screening tool for speech disorders in patients with PD.

Original languageEnglish
JournalEvaluation and the Health Professions
DOIs
Publication statusAccepted/In press - 2022

All Science Journal Classification (ASJC) codes

  • Health Policy

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