Metric attributes of the unified Parkinson's disease rating scale 3.0 battery: Part I, feasibility, scaling assumptions, reliability, and precision.
Identifieur interne : 002C62 ( PubMed/Corpus ); précédent : 002C61; suivant : 002C63Metric attributes of the unified Parkinson's disease rating scale 3.0 battery: Part I, feasibility, scaling assumptions, reliability, and precision.
Auteurs : Pablo Martinez-Martin ; Maria João ForjazSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2006.
English descriptors
- KwdEn :
- MESH :
- physiopathology : Parkinson Disease.
- psychology : Parkinson Disease.
- Aged, Disability Evaluation, Facial Expression, Feasibility Studies, Female, Humans, Male, Middle Aged, Reproducibility of Results, Sensitivity and Specificity, Severity of Illness Index, Speech, Time Factors.
Abstract
This article sought to assess the feasibility, scaling assumptions, reliability, precision, and factor analysis of the three most widely used rating scales in Parkinson's disease (PD): modified Hoehn and Yahr (HY), Schwab and England (SE), and Unified Parkinson's Disease Rating Scale (UPDRS). A multicenter sample of 1,136 PD patients was assessed. The percentage of missing data was 8% for SE, HY, and UPDRS mentation, and almost negligible (<2%) for the other UPDRS subscales. A high floor effect was found for UPDRS mentation (23%) and complications scales (36%). Item content validity, measured by multitrait scaling analysis, was adequate for all UPDRS subscales (scaling successes > 90%). Internal consistency coefficients for the UPDRS scales ranged from 0.79 (mentation) to 0.92 (activities of daily living and motor). Factor structure of the UPDRS mentation, activities of daily living, and complications subscales was replicated. As a whole, the HY, SE, and UPDRS are acceptable, consistent, and potentially sensitive rating scales.
DOI: 10.1002/mds.20916
PubMed: 16673397
Links to Exploration step
pubmed:16673397Le document en format XML
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<author><name sortKey="Forjaz, Maria Joao" sort="Forjaz, Maria Joao" uniqKey="Forjaz M" first="Maria João" last="Forjaz">Maria João Forjaz</name>
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<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Parkinson Disease (physiopathology)</term>
<term>Parkinson Disease (psychology)</term>
<term>Reproducibility of Results</term>
<term>Sensitivity and Specificity</term>
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<term>Speech</term>
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<term>Male</term>
<term>Middle Aged</term>
<term>Reproducibility of Results</term>
<term>Sensitivity and Specificity</term>
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<front><div type="abstract" xml:lang="en">This article sought to assess the feasibility, scaling assumptions, reliability, precision, and factor analysis of the three most widely used rating scales in Parkinson's disease (PD): modified Hoehn and Yahr (HY), Schwab and England (SE), and Unified Parkinson's Disease Rating Scale (UPDRS). A multicenter sample of 1,136 PD patients was assessed. The percentage of missing data was 8% for SE, HY, and UPDRS mentation, and almost negligible (<2%) for the other UPDRS subscales. A high floor effect was found for UPDRS mentation (23%) and complications scales (36%). Item content validity, measured by multitrait scaling analysis, was adequate for all UPDRS subscales (scaling successes > 90%). Internal consistency coefficients for the UPDRS scales ranged from 0.79 (mentation) to 0.92 (activities of daily living and motor). Factor structure of the UPDRS mentation, activities of daily living, and complications subscales was replicated. As a whole, the HY, SE, and UPDRS are acceptable, consistent, and potentially sensitive rating scales.</div>
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<Title>Movement disorders : official journal of the Movement Disorder Society</Title>
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<Abstract><AbstractText>This article sought to assess the feasibility, scaling assumptions, reliability, precision, and factor analysis of the three most widely used rating scales in Parkinson's disease (PD): modified Hoehn and Yahr (HY), Schwab and England (SE), and Unified Parkinson's Disease Rating Scale (UPDRS). A multicenter sample of 1,136 PD patients was assessed. The percentage of missing data was 8% for SE, HY, and UPDRS mentation, and almost negligible (<2%) for the other UPDRS subscales. A high floor effect was found for UPDRS mentation (23%) and complications scales (36%). Item content validity, measured by multitrait scaling analysis, was adequate for all UPDRS subscales (scaling successes > 90%). Internal consistency coefficients for the UPDRS scales ranged from 0.79 (mentation) to 0.92 (activities of daily living and motor). Factor structure of the UPDRS mentation, activities of daily living, and complications subscales was replicated. As a whole, the HY, SE, and UPDRS are acceptable, consistent, and potentially sensitive rating scales.</AbstractText>
<CopyrightInformation>(c) 2006 Movement Disorder Society</CopyrightInformation>
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