Rating scales for dystonia: A multicenter assessment
Identifieur interne : 003F68 ( Main/Exploration ); précédent : 003F67; suivant : 003F69Rating scales for dystonia: A multicenter assessment
Auteurs : Cynthia L. Comella [États-Unis] ; Sue Leurgans [États-Unis] ; Joanne Wuu [États-Unis] ; Glenn T. Stebbins [États-Unis] ; Teresa Chmura [États-Unis]Source :
- Movement Disorders [ 0885-3185 ] ; 2003-03.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Homme.
English descriptors
- KwdEn :
- Comparative study, Dystonia, Dystonia (diagnosis), Evaluation scale, Female, Human, Humans, Male, Middle Aged, Multicenter study, Observer Variation, Psychometrics, Reproducibility of Results, Severity of Illness Index, Severity score, Test reliability, Videotape Recording, dystonia, movement disorder, outcome assessment, rating scale.
- MESH :
Abstract
The evaluation of dystonia requires a reliable rating scale. The widely used Fahn‐Marsden Scale (F‐M) has not been sufficiently tested across multiple centers and investigators. The Dystonia Study Group developed the Unified Dystonia Rating Scale (UDRS) and a Global Dystonia Rating Scale (GDS) to serve as instruments to assess dystonia severity. In this study, 25 dystonia experts evaluated the UDRS, F‐M, and GDS for internal consistency and reliability. One hundred dystonia patients were videotaped using a standardized videotape protocol. Each examiner rated 20 patients using the UDRS, F‐M, and GDS in random order. The examiner then assessed each scale for ease of use. Statistical analysis used Cronbach's α, intraclass correlation coefficients (ICC), generalized weighted κ statistic, and Kendall's coefficient of concordance. The UDRS, F‐M, and GDS showed excellent internal consistency (Cronbach's α 0.89–0.93) and good to excellent correlation among the raters (ICC range from 0.71–0.78). Inter‐rater agreement was fair to excellent (Kendall's 0.54–0.87; κ 0.37–0.91) being lowest for eyes, jaw, face, and larynx. The modifying ratings (Duration in the UDRS and Provoking Factor in the F‐M) showed less agreement than the motor severity ratings. Among scales, the total scores correlated (Pearson's r, 0.977–0.983). Overall, 74% of raters found the GDS the easiest to apply. The GDS with its simplicity and ease of application may be the most useful dystonia rating scale. © 2002 Movement Disorder Society
Url:
DOI: 10.1002/mds.10377
Affiliations:
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Le document en format XML
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<term>Human</term>
<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
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<term>Observer Variation</term>
<term>Psychometrics</term>
<term>Reproducibility of Results</term>
<term>Severity of Illness Index</term>
<term>Severity score</term>
<term>Test reliability</term>
<term>Videotape Recording</term>
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<term>Male</term>
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<term>Dystonie</term>
<term>Echelle évaluation</term>
<term>Etude comparative</term>
<term>Etude multicentrique</term>
<term>Fidélité test</term>
<term>Homme</term>
<term>Indice gravité</term>
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<front><div type="abstract" xml:lang="en">The evaluation of dystonia requires a reliable rating scale. The widely used Fahn‐Marsden Scale (F‐M) has not been sufficiently tested across multiple centers and investigators. The Dystonia Study Group developed the Unified Dystonia Rating Scale (UDRS) and a Global Dystonia Rating Scale (GDS) to serve as instruments to assess dystonia severity. In this study, 25 dystonia experts evaluated the UDRS, F‐M, and GDS for internal consistency and reliability. One hundred dystonia patients were videotaped using a standardized videotape protocol. Each examiner rated 20 patients using the UDRS, F‐M, and GDS in random order. The examiner then assessed each scale for ease of use. Statistical analysis used Cronbach's α, intraclass correlation coefficients (ICC), generalized weighted κ statistic, and Kendall's coefficient of concordance. The UDRS, F‐M, and GDS showed excellent internal consistency (Cronbach's α 0.89–0.93) and good to excellent correlation among the raters (ICC range from 0.71–0.78). Inter‐rater agreement was fair to excellent (Kendall's 0.54–0.87; κ 0.37–0.91) being lowest for eyes, jaw, face, and larynx. The modifying ratings (Duration in the UDRS and Provoking Factor in the F‐M) showed less agreement than the motor severity ratings. Among scales, the total scores correlated (Pearson's r, 0.977–0.983). Overall, 74% of raters found the GDS the easiest to apply. The GDS with its simplicity and ease of application may be the most useful dystonia rating scale. © 2002 Movement Disorder Society</div>
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