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.
BauerV.AlerićZ.JančićE.MiholovićV. (2011). Voice quality in Parkinson’s disease in the Croatian language speakers. Voice in Parkinson’s Disease, 35(2), 209–212. https://hrcak.srce.hr/72268
2.
BenkeT.BöschS.AndreeB. (1998). A study of emotional processing in Parkinson’s disease. Brain and Cognition, 38(1), 36–52. https://doi.org/10.1006/brcg.1998.1013
3.
CanterG. J. (1963). Speech characteristics of patients with Parkinson’s disease: I. Intensity, pitch, and duration. Journal of Speech and Hearing Disorders, 28(3), 221–229. https://doi.org/10.1044/jshd.2803.221
4.
ChenC. L.MaH. I.SuC. S.LinC. H. (2019). The development of the Parkinson’s disease Language and communication assessment [poster presentation]. In The 14th International Conference on Alzheimer’s & Parkinson’s diseases, Lisbon, Portugal, 2019.
5.
ChuS. Y.TanC. L. (2019). Perception on the quality of life, communication and life satisfaction among individuals with Parkison’s and their caregivers. Ethiopian Journal of Health Sciences, 29(5), 551–558. https://doi.org/10.4314/ejhs.v29i5.4
6.
CiucciM. R.GrantL. M.RajamanickamE. S.HilbyB. L.BlueK. V.JonesC. A.Kelm-NelsonC. A. (2013). Early identification and treatment of communication and swallowing deficits in Parkinson disease. Seminars in Speech and Language, 34(3), 185–202. https://doi.org/10.1055/s-0033-1358367
7.
CohenJ. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Hillsdale, NJ: Erlbaum.
8.
DashtipourK.TafreshiA.LeeJ.CrawleyB. (2018). Speech disorders in Parkinson’s disease: Pathophysiology, medical management and surgical approaches. Neurodegenerative Disease Management, 8(5), 337–348. https://doi.org/10.2217/nmt-2018-0021
9.
DiasA. E.BarbosaM. T.LimongiJ. C. P.BarbosaE. R. (2016). Speech disorders did not correlate with age at onset of Parkinson’s disease. Arquivos de Neuro-Psiquiatria, 74(2), 117–121. https://doi.org/10.1590/0004-282X20160008
10.
DuffyJ. R. (2013). Motor speech disorders: Substrates, differential diagnosis, and management (3rd ed). Mosby.
11.
FolsteinM. F.FolsteinS. E.McHughP. R. (1975). Mini-mental state.” A practical method for grading the cognitive state of patients for the clinician. Journal of Psychiatric Research, 12(3), 189–198. https://doi.org/10.1016/0022-3956(75)90026-6
12.
GoetzC. G.FahnS.Martinez-MartinP.PoeweW.SampaioC.StebbinsG. T.SternM. B.TilleyB. C.DodelR.DuboisB.HollowayR.JankovicJ.KulisevskyJ.LangA. E.LeesA.LeurgansS.LeWittP. A.NyenhuisD.OlanowC.LaPelleN. (2007). Movement disorder society-sponsored revision of the unified Parkinson’s disease rating scale (MDS-UPDRS): Process, format, and clinimetric testing plan. Movement Disorders, 22(1), 41–47. https://doi.org/10.1002/mds.21198
13.
GreenD. M.SwetsJ. A. (1966). Signal detection theory and psychophysics. John Wiley & Sons, Inc.. 0-471-32420-5.
14.
HanleyJ. A.McNeilB. J. (1982). The meaning and use of the area under a receiver operating characteristic (ROC) curve. Radiology, 143(1), 29–36. https://doi.org/10.1148/radiology.143.1.7063747
15.
HensonR. K. (2001). Understanding internal consistency reliability estimates: A conceptual primer on coefficient alpha. Measurement and Evaluation in Counseling and Development, 34(3), 177–189. https://doi.org/10.1080/07481756.2002.12069034
JacobsonB. H.JohnsonA.GrywalskiC.SilbergleitA.JacobsonG.BenningerM. S.NewmanC. W. (1997). The voice Handicap Index (VHI): Development and validation. American Journal of Speech-Language Pathology, 6(3), 66–70. https://doi.org/10.1044/1058-0360.0603.66
MillerN.DeaneK. H. O.JonesD.NobleE.GibbC. (2011). National survey of speech and language therapy provision for people with Parkinson’s disease in the United Kingdom: Therapists’ practices. International Journal of Language & Communication Disorders, 46(2), 189–201. https://doi.org/10.3109/13682822.2010.484849
21.
MillerN.NobleE.JonesD.BurnD. (2006). Life with communication changes in Parkinson’s disease. Age and Ageing, 35(3), 235–239. https://doi.org/10.1093/ageing/afj053
22.
MorrisJ. C. (1993). The clinical Dementia rating (CDR): Current version and scoring rules. Neurology, 43(11), 2412–2414. https://doi.org/10.1212/wnl.43.11.2412-a
23.
MunroB. H. (2005). Statistical methods for health care research (vol. 1). Lippincott Williams & Wilkins.
PetrieA.SabinC. (2005). Diagnostic tools (2nd ed). London Blackwell Publishing.
26.
RamigL.HalpernA.SpielmanJ.FoxC.FreemanK. (2018). Speech treatment in Parkinson’s disease: Randomized controlled trial (RCT). Movement Disorders, 33(11), 1777–1791. https://doi.org/10.1002/mds.27460
27.
SchulzG. M.GrantM. K. (2000). Effects of speech therapy and pharmacologic and surgical treatments on voice and speech in Parkinson’s disease: A review of the literature. Journal of Communication Disorders, 33(1), 59–88. https://doi.org/10.1016/s0021-9924(99)00025-8
28.
ShoukriM. M. (1999). Statistical methods for health sciences (2nd ed). CRC Press.
29.
SkoddaS.GrönheitW.MancinelliN.SchlegelU. (2013). Progression of voice and speech impairment in the course of Parkinson’s disease: A longitudinal study. Parkinson’s Disease, 2013, 389195. https://doi.org/10.1155/2013/389195
30.
SkoddaS.VisserW.SchlegelU. (2011). Vowel articulation in Parkinson’s disease. Journal of Voice: Official Journal of the Voice Foundation, 25(4), 467–472. https://doi.org/10.1016/j.jvoice.2010.01.009
31.
SwalesM.TheodorosD.HillA. J.RussellT. (2021). Communication and swallowing changes, everyday impacts and access to speech-language pathology services for people with Parkinson’s disease: An Australian survey. International Journal of Speech-Language Pathology, 23(1), 70–82. https://doi.org/10.1080/17549507.2020.1739332
32.
WangN. M.HuangK. Y.SuM. C.HsinC. H. (2011). Development and validation of the voice Handicap index-10 in Mandarin Chinese. Journal of Taiwan Otolaryngology - Head and Neck Surgery, 46(4), 190–196. http://doi.org/10.6286/2011.46.4.190
33.
WattsC. R.ZhangY. (2022). Progression of self-perceived speech and swallowing impairment in early stage Parkinson’s disease: Longitudinal analysis of the unified Parkinson’s disease rating scale. Journal of Speech, Language, and Hearing Research, 65(1), 146–158. https://doi.org/10.1044/2021_JSLHR-21-00216
34.
YangS.WangF.YangL.XuF.LuoM.ChenX.FengX.ZouX. (2020). The physical significance of acoustic parameters and its clinical significance of dysarthria in Parkinson’s disease. Scientific Reports, 10(1), 11776. https://doi.org/10.1038/s41598-020-68754-0
35.
YorkstonK.BaylorC.BrittonD. (2017). Incorporating the principles of self-management into treatment of dysarthria associated with Parkinson’s disease. Seminars in Speech and Language, 38(3), 210–219. https://doi.org/10.1055/s-0037-1602840
YücetürkA. V.YilmazH.EğrilmezM.KaracaS. (2002). Voice analysis and videolaryngostroboscopy in patients with Parkinson’s disease. European Archives of Oto-Rhino-Laryngology, 259(6), 290–293. https://doi.org/10.1007/s00405-002-0462-1
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