Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study

Objectives: Widespread pain is important for the diagnosis of fibromyalgia (FM). For this purpose, the sum of pain regions obtained from a topographical distribution has been used to compute a Widespread Pain Index (WPI), but there is no empirical basis for choosing the regions. The aim of this stud...

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Detalles Bibliográficos
Autores: Vallejo Pareja, Miguel Ángel, Rivera, Javier MD, Vallejo-Slocker, Laura
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad Nacional de Educación a Distancia
Repositorio:e-spacio. Repositorio Institucional de la UNED
Idioma:inglés
OAI Identifier:oai:e-spacio.uned.es:20.500.14468/30990
Acceso en línea:https://hdl.handle.net/20.500.14468/30990
Access Level:acceso abierto
Palabra clave:6111 Personalidad
fibromyalgia
widespread pain
diagnosis
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spelling Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary StudyVallejo Pareja, Miguel ÁngelRivera, Javier MDVallejo-Slocker, Laura6111 Personalidadfibromyalgiawidespread paindiagnosisObjectives: Widespread pain is important for the diagnosis of fibromyalgia (FM). For this purpose, the sum of pain regions obtained from a topographical distribution has been used to compute a Widespread Pain Index (WPI), but there is no empirical basis for choosing the regions. The aim of this study was to find an empirical distribution of the pain regions. Materials and Methods: We evaluated 228 female patients with FM. They completed the Fibromyalgia Survey Questionnaire, Fibromyalgia Impact Questionnaire (FIQ), Combined Index of Severity in Fibromyalgia (ICAF), and Short Form-36 Health Survey. The pain regions of the WPI were grouped by the topographical distribution (WPIR) and compared with a new empirical distribution (WPIE) obtained through exploratory factor analysis. A decision- tree analysis was conducted to identify the optimal algorithm for selecting pain regions related to the severity of FM. Results: The WPIE has a normal distribution compared with the WPIR. It also shows higher correlations with FM severity. From the factor analysis, 4 factors explain 48.5% of the variance. Two factors (emotional and physical) can conform to the decision-tree analysis using the dependent variables FIQ and ICAF. These factors are very congruent with the cutoff points previously proposed for FIQ and ICAF. The emotional factor is the first in the decision-tree. Discussion: WPIE has a normal distribution and shows better predictive qualities than WPIR. The emotional factor is conceptualized as emotional because of the relative importance of the right hemisphere in negative emotions and pain. The physical factor could be responsible for the decreased ability to coordinate left-right stepping.Wolters-KluwerAgencia Estatal de Investigación (España)e-Spacio UNED20252025-12-0320192019-03-2920192019-03-29journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14468/30990reponame:e-spacio. Repositorio Institucional de la UNEDinstname:Universidad Nacional de Educación a DistanciaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.esoai:e-spacio.uned.es:20.500.14468/309902026-06-06T12:38:31Z
dc.title.none.fl_str_mv Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study
title Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study
spellingShingle Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study
Vallejo Pareja, Miguel Ángel
6111 Personalidad
fibromyalgia
widespread pain
diagnosis
title_short Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study
title_full Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study
title_fullStr Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study
title_full_unstemmed Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study
title_sort Empirical Grouping of Pain Zones in Fibromyalgia A Preliminary Study
dc.creator.none.fl_str_mv Vallejo Pareja, Miguel Ángel
Rivera, Javier MD
Vallejo-Slocker, Laura
author Vallejo Pareja, Miguel Ángel
author_facet Vallejo Pareja, Miguel Ángel
Rivera, Javier MD
Vallejo-Slocker, Laura
author_role author
author2 Rivera, Javier MD
Vallejo-Slocker, Laura
author2_role author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
e-Spacio UNED
dc.subject.none.fl_str_mv 6111 Personalidad
fibromyalgia
widespread pain
diagnosis
topic 6111 Personalidad
fibromyalgia
widespread pain
diagnosis
description Objectives: Widespread pain is important for the diagnosis of fibromyalgia (FM). For this purpose, the sum of pain regions obtained from a topographical distribution has been used to compute a Widespread Pain Index (WPI), but there is no empirical basis for choosing the regions. The aim of this study was to find an empirical distribution of the pain regions. Materials and Methods: We evaluated 228 female patients with FM. They completed the Fibromyalgia Survey Questionnaire, Fibromyalgia Impact Questionnaire (FIQ), Combined Index of Severity in Fibromyalgia (ICAF), and Short Form-36 Health Survey. The pain regions of the WPI were grouped by the topographical distribution (WPIR) and compared with a new empirical distribution (WPIE) obtained through exploratory factor analysis. A decision- tree analysis was conducted to identify the optimal algorithm for selecting pain regions related to the severity of FM. Results: The WPIE has a normal distribution compared with the WPIR. It also shows higher correlations with FM severity. From the factor analysis, 4 factors explain 48.5% of the variance. Two factors (emotional and physical) can conform to the decision-tree analysis using the dependent variables FIQ and ICAF. These factors are very congruent with the cutoff points previously proposed for FIQ and ICAF. The emotional factor is the first in the decision-tree. Discussion: WPIE has a normal distribution and shows better predictive qualities than WPIR. The emotional factor is conceptualized as emotional because of the relative importance of the right hemisphere in negative emotions and pain. The physical factor could be responsible for the decreased ability to coordinate left-right stepping.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-03-29
2019
2019-03-29
2025
2025-12-03
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14468/30990
url https://hdl.handle.net/20.500.14468/30990
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
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wolters-Kluwer
publisher.none.fl_str_mv Wolters-Kluwer
dc.source.none.fl_str_mv reponame:e-spacio. Repositorio Institucional de la UNED
instname:Universidad Nacional de Educación a Distancia
instname_str Universidad Nacional de Educación a Distancia
reponame_str e-spacio. Repositorio Institucional de la UNED
collection e-spacio. Repositorio Institucional de la UNED
repository.name.fl_str_mv
repository.mail.fl_str_mv
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