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Expanded and independent validation of the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS)
- Source :
- Journal of neurology. 260(1)
- Publication Year :
- 2012
-
Abstract
- The Movement Disorder Society-UPDRS (MDS-UPDRS) was published in 2008, showing satisfactory clinimetric results and has been proposed as the official benchmark scale for Parkinson's disease. The present study, based on the official MDS-UPDRS Spanish version, performed the first independent testing of the scale and adds information on its clinimetric properties. The cross-culturally adapted MDS-UPDRS Spanish version showed a comparative fit index ≥ 0.90 for each part (I-IV) relative to the English-language version and was accepted as the Official MDS-UPDRS Spanish version. Data from this scale, applied with other assessments to Spanish-speaking Parkinson's disease patients in five countries, were analyzed for an independent and complementary clinimetric evaluation. In total, 435 patients were included. Missing data were negligible and moderate floor effect (30 %) was found for Part IV. Cronbach's α index ranged between 0.79 and 0.93 and only five items did not reach the 0.30 threshold value of item-total correlation. Test-retest reliability was adequate with only two sub-scores of the item 3.17, Rest tremor amplitude, reaching κ values lower than 0.60. The intraclass correlation coefficient was higher than 0.85 for the total score of each part. Correlation of the MDS-UPDRS parts with other measures for related constructs was high (≥ 0.60) and the standard error of measurement lower than one-third baseline standard deviation for all subscales. Results confirm those of the original study and add information on scale reliability, construct validity, and precision. The MDS-UPDRS Spanish version shows satisfactory clinimetric characteristics.
- Subjects :
- Adult
Male
medicine.medical_specialty
Intraclass correlation
International Cooperation
Unified Parkinson's disease rating scale
Observation
Severity of Illness Index
Cohort Studies
Disability Evaluation
Physical medicine and rehabilitation
Cronbach's alpha
Floor effect
medicine
Humans
Reliability (statistics)
Societies, Medical
Aged
Retrospective Studies
Aged, 80 and over
Neurologic Examination
Construct validity
Reproducibility of Results
Parkinson Disease
Middle Aged
Missing data
Standard error
Cross-Sectional Studies
Neurology
Female
Neurology (clinical)
Psychology
Subjects
Details
- ISSN :
- 14321459
- Volume :
- 260
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Journal of neurology
- Accession number :
- edsair.doi.dedup.....04e2ec6f416a03dfd22bea2424acf9c5