The Latent Structure of Medically Unexplained Symptoms and Its Relation to Functional Somatic Syndromes

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Michael Witthoeft
  • Wolfgang Hiller
  • Noelle Loch
  • Fabian Jasper
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000318505900003&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1007/s12529-012-9237-2
eISSN
1532-7558
Externe Identifier
  • Clarivate Analytics Document Solution ID: 138JX
  • PubMed Identifier: 22618306
ISSN
1070-5503
Ausgabe der Veröffentlichung
2
Zeitschrift
INTERNATIONAL JOURNAL OF BEHAVIORAL MEDICINE
Schlüsselwörter
  • Medically unexplained symptoms (MUS)
  • Somatization
  • Somatoform disorders
  • Functional somatic syndromes
  • Irritable bowel syndrome (IBS)
  • Confirmatory factor analysis
  • Nested factor model
  • Bifactor model
Paginierung
172 - 183
Datum der Veröffentlichung
2013
Status
Published
Titel
The Latent Structure of Medically Unexplained Symptoms and Its Relation to Functional Somatic Syndromes
Sub types
  • Article
Ausgabe der Zeitschrift
20

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Autoren
  • Michael Witthöft
  • Wolfgang Hiller
  • Noelle Loch
  • Fabian Jasper
DOI
10.1007/s12529-012-9237-2
eISSN
1532-7558
ISSN
1070-5503
Ausgabe der Veröffentlichung
2
Zeitschrift
International Journal of Behavioral Medicine
Sprache
en
Online publication date
2012
Paginierung
172 - 183
Datum der Veröffentlichung
2013
Status
Published
Herausgeber
Springer Science and Business Media LLC
Herausgeber URL
http://dx.doi.org/10.1007/s12529-012-9237-2
Datum der Datenerfassung
2020
Titel
The Latent Structure of Medically Unexplained Symptoms and Its Relation to Functional Somatic Syndromes
Ausgabe der Zeitschrift
20

Datenquelle: Crossref

Abstract
<h4>Background</h4>Medically unexplained symptoms are the hallmark of somatoform disorders and functional somatic syndromes.<h4>Purpose</h4>Although medically unexplained symptoms represent a common phenomenon both in the general population as well as in medical settings, the exact latent structure of somatic symptoms remains largely unclear.<h4>Method</h4>We examined the latent structure of medically unexplained symptoms by means of the Patient Health Questionnaire-15 (PHQ-15) questionnaire (i.e., a popular symptom checklist) and provide support for the construct validity of our model. The data were analyzed using confirmatory factor analysis in a general population sample (study 1; N = 414) and in a sample of primary care patients (study 2; N = 308). We compared four different latent structure models of medically unexplained symptoms: a general factor model, a correlated group factor model, a hierarchical model, and a bifactor model.<h4>Results</h4>In study 1, a bifactor model with one general factor and four independent specific symptom factors (i.e., gastrointestinal, pain, fatigue, and cardiopulmonary symptoms) showed the best model fit. This bifactor model was confirmed in the primary care sample (study 2). Additionally, the model explained 59 % of the variance of the irritable bowel syndrome (IBS). In this structural equation model, both the general factor (14 %) as well as the gastrointestinal symptom factor (42 %) significantly predicted the IBS.<h4>Conclusion</h4>The findings of both studies help to clarify the latent structure of somatic symptoms in the PHQ-15. The bifactor model outperformed alternative models and demonstrated external validity in predicting IBS.
Addresses
  • Division of Clinical Psychology and Psychotherapy, Johannes Gutenberg University of Mainz, Wallstrasse 3, Mainz, Germany. witthoef@uni-mainz.de
Autoren
  • Michael Witthöft
  • Wolfgang Hiller
  • Noelle Loch
  • Fabian Jasper
DOI
10.1007/s12529-012-9237-2
eISSN
1532-7558
Externe Identifier
  • PubMed Identifier: 22618306
Open access
false
ISSN
1070-5503
Ausgabe der Veröffentlichung
2
Zeitschrift
International journal of behavioral medicine
Schlüsselwörter
  • Humans
  • Fatigue Syndrome, Chronic
  • Irritable Bowel Syndrome
  • Heart Diseases
  • Syndrome
  • Factor Analysis, Statistical
  • Somatoform Disorders
  • Sex Factors
  • Models, Biological
  • Adult
  • Germany
  • Female
  • Male
  • Checklist
  • Symptom Assessment
  • Surveys and Questionnaires
Sprache
eng
Medium
Print
Paginierung
172 - 183
Datum der Veröffentlichung
2013
Status
Published
Datum der Datenerfassung
2012
Titel
The latent structure of medically unexplained symptoms and its relation to functional somatic syndromes.
Sub types
  • Research Support, Non-U.S. Gov't
  • Validation Study
  • Journal Article
Ausgabe der Zeitschrift
20

Datenquelle: Europe PubMed Central

Abstract
BACKGROUND: Medically unexplained symptoms are the hallmark of somatoform disorders and functional somatic syndromes. PURPOSE: Although medically unexplained symptoms represent a common phenomenon both in the general population as well as in medical settings, the exact latent structure of somatic symptoms remains largely unclear. METHOD: We examined the latent structure of medically unexplained symptoms by means of the Patient Health Questionnaire-15 (PHQ-15) questionnaire (i.e., a popular symptom checklist) and provide support for the construct validity of our model. The data were analyzed using confirmatory factor analysis in a general population sample (study 1; N = 414) and in a sample of primary care patients (study 2; N = 308). We compared four different latent structure models of medically unexplained symptoms: a general factor model, a correlated group factor model, a hierarchical model, and a bifactor model. RESULTS: In study 1, a bifactor model with one general factor and four independent specific symptom factors (i.e., gastrointestinal, pain, fatigue, and cardiopulmonary symptoms) showed the best model fit. This bifactor model was confirmed in the primary care sample (study 2). Additionally, the model explained 59 % of the variance of the irritable bowel syndrome (IBS). In this structural equation model, both the general factor (14 %) as well as the gastrointestinal symptom factor (42 %) significantly predicted the IBS. CONCLUSION: The findings of both studies help to clarify the latent structure of somatic symptoms in the PHQ-15. The bifactor model outperformed alternative models and demonstrated external validity in predicting IBS.
Autoren
  • Michael Witthöft
  • Wolfgang Hiller
  • Noelle Loch
  • Fabian Jasper
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/22618306
DOI
10.1007/s12529-012-9237-2
eISSN
1532-7558
Ausgabe der Veröffentlichung
2
Zeitschrift
Int J Behav Med
Schlüsselwörter
  • Adult
  • Checklist
  • Factor Analysis, Statistical
  • Fatigue Syndrome, Chronic
  • Female
  • Germany
  • Heart Diseases
  • Humans
  • Irritable Bowel Syndrome
  • Male
  • Models, Biological
  • Sex Factors
  • Somatoform Disorders
  • Surveys and Questionnaires
  • Symptom Assessment
  • Syndrome
Sprache
eng
Country
England
Paginierung
172 - 183
Datum der Veröffentlichung
2013
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2014
Titel
The latent structure of medically unexplained symptoms and its relation to functional somatic syndromes.
Sub types
  • Journal Article
  • Research Support, Non-U.S. Gov't
  • Validation Study
Ausgabe der Zeitschrift
20

Datenquelle: PubMed

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