Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS

Background: This article proposes an International Parkinson and Movement Disorder Society (MDS)-UPDRS tremor-based scale and describes its measurement properties, with a view to developing an improved scale for assessing tremor in Parkinson's disease (PD). Methods: This was a cross-sectional,...

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Authors: Forjaz, Maria João, Ayala, Alba, Testa, Claudia M, Bain, Peter G, Elble, Rodger, Haubenberger, Dietrich, Rodriguez-Blazquez, Carmen, Deuschl, Günther, Martínez-Martín, Pablo
Format: article
Publication Date:2015
Country:España
Institution:Instituto de Salud Carlos III (ISCIII)
Repository:Repisalud
Language:English
OAI Identifier:oai:repisalud.isciii.es:20.500.12105/8096
Online Access:http://hdl.handle.net/20.500.12105/8096
Access Level:Open access
Keyword:Aged
Cross-Sectional Studies
Female
Humans
Male
Middle Aged
Parkinson Disease
Psychometrics
Reproducibility of Results
Tremor
Severity of Illness Index
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spelling Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRSForjaz, Maria JoãoAyala, AlbaTesta, Claudia MBain, Peter GElble, RodgerHaubenberger, DietrichRodriguez-Blazquez, CarmenDeuschl, GüntherMartínez-Martín, PabloAgedCross-Sectional StudiesFemaleHumansMaleMiddle AgedParkinson DiseasePsychometricsReproducibility of ResultsTremorSeverity of Illness IndexBackground: This article proposes an International Parkinson and Movement Disorder Society (MDS)-UPDRS tremor-based scale and describes its measurement properties, with a view to developing an improved scale for assessing tremor in Parkinson's disease (PD). Methods: This was a cross-sectional, multicenter study of 435 PD patients. Rasch analysis was performed on the 11 MDS-UPDRS tremor items. Construct validity, precision, and test-retest reliability were also analyzed. Results: After some modifications, which included removal of an item owing to redundancy, the obtained MDS-UPDRS tremor scale showed moderate reliability, unidimensionality, absence of differential item functioning, satisfactory convergent validity with medication, and better precision than the raw sum score. However, the scale displayed a floor effect and a need for more items measuring lower levels of tremor. Conclusions: The MDS-UPDRS tremor scale provides linear scores that can be used to assess tremor in PD in a valid, reliable way. The scale might benefit from modifications and studies that analyze its responsiveness.Wiley20192019-08-0120152015-07-0120152015-07-01research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/20.500.12105/8096reponame:Repisaludinstname:Instituto de Salud Carlos III (ISCIII)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-CompartirIgual 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessoai:repisalud.isciii.es:20.500.12105/80962026-06-12T12:43:37Z
dc.title.none.fl_str_mv Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS
title Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS
spellingShingle Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS
Forjaz, Maria João
Aged
Cross-Sectional Studies
Female
Humans
Male
Middle Aged
Parkinson Disease
Psychometrics
Reproducibility of Results
Tremor
Severity of Illness Index
title_short Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS
title_full Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS
title_fullStr Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS
title_full_unstemmed Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS
title_sort Proposing a Parkinson's disease-specific tremor scale from the MDS-UPDRS
dc.creator.none.fl_str_mv Forjaz, Maria João
Ayala, Alba
Testa, Claudia M
Bain, Peter G
Elble, Rodger
Haubenberger, Dietrich
Rodriguez-Blazquez, Carmen
Deuschl, Günther
Martínez-Martín, Pablo
author Forjaz, Maria João
author_facet Forjaz, Maria João
Ayala, Alba
Testa, Claudia M
Bain, Peter G
Elble, Rodger
Haubenberger, Dietrich
Rodriguez-Blazquez, Carmen
Deuschl, Günther
Martínez-Martín, Pablo
author_role author
author2 Ayala, Alba
Testa, Claudia M
Bain, Peter G
Elble, Rodger
Haubenberger, Dietrich
Rodriguez-Blazquez, Carmen
Deuschl, Günther
Martínez-Martín, Pablo
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Aged
Cross-Sectional Studies
Female
Humans
Male
Middle Aged
Parkinson Disease
Psychometrics
Reproducibility of Results
Tremor
Severity of Illness Index
topic Aged
Cross-Sectional Studies
Female
Humans
Male
Middle Aged
Parkinson Disease
Psychometrics
Reproducibility of Results
Tremor
Severity of Illness Index
description Background: This article proposes an International Parkinson and Movement Disorder Society (MDS)-UPDRS tremor-based scale and describes its measurement properties, with a view to developing an improved scale for assessing tremor in Parkinson's disease (PD). Methods: This was a cross-sectional, multicenter study of 435 PD patients. Rasch analysis was performed on the 11 MDS-UPDRS tremor items. Construct validity, precision, and test-retest reliability were also analyzed. Results: After some modifications, which included removal of an item owing to redundancy, the obtained MDS-UPDRS tremor scale showed moderate reliability, unidimensionality, absence of differential item functioning, satisfactory convergent validity with medication, and better precision than the raw sum score. However, the scale displayed a floor effect and a need for more items measuring lower levels of tremor. Conclusions: The MDS-UPDRS tremor scale provides linear scores that can be used to assess tremor in PD in a valid, reliable way. The scale might benefit from modifications and studies that analyze its responsiveness.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-07-01
2015
2015-07-01
2019
2019-08-01
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12105/8096
url http://hdl.handle.net/20.500.12105/8096
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-CompartirIgual 4.0 Internacional
http://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-CompartirIgual 4.0 Internacional
http://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Repisalud
instname:Instituto de Salud Carlos III (ISCIII)
instname_str Instituto de Salud Carlos III (ISCIII)
reponame_str Repisalud
collection Repisalud
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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