Cited by 681Obsessive-Compulsive Spectrum DisordersAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesPsychoanalysis and Psychopathology Research

Meta-analysis of the symptom structure of obsessive–compulsive disorder

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Bloch, Michael H., Landeros-Weisenberger, Angeli, Rosario, Maria C., Pittenger, Christopher, Leckman, James F.·2008·American Journal of Psychiatry

Abstract

OBJECTIVE: OCD is a clinically heterogeneous condition. This heterogeneity has the potential to reduce power in genetic, neuroimaging, and clinical trials. Despite a mounting number of studies, there remains debate regarding the exact factor structure of OCD symptoms. The authors conducted a meta-analysis to determine the factor structure of the Yale-Brown Obsessive Compulsive Scale Symptom Checklist. METHOD: Studies were included if they involved subjects with OCD and included an exploratory factor analysis of the 13 Yale-Brown Obsessive Compulsive Scale Symptom Checklist categories or the items therein. A varimax-rotation was conducted in SAS 9.1 using the PROC FACTOR CORR to extract factors from sample-size weighted co-occurrence matrices. Stratified meta-analysis was conducted to determine the factor structure of OCD in studies involving children and adults separately. RESULTS: Twenty-one studies involving 5,124 participants were included. The four factors generated were 1) symmetry: symmetry obsessions and repeating, ordering, and counting compulsions; 2) forbidden thoughts: aggression, sexual, religious, and somatic obsessions and checking compulsions, 3) cleaning: cleaning and contamination, and 4) hoarding: hoarding obsessions and compulsions. Factor analysis of studies including adults yielded an identical factor structure compared to the overall meta-analysis. Factor analysis of child-only studies differed in that checking loaded highest on the symmetry factor and somatic obsessions, on the cleaning factor. CONCLUSIONS: A four-factor structure explained a large proportion of the heterogeneity in the clinical symptoms of OCD. Further item-level factor analyses are needed to determine the appropriate placement of miscellaneous somatic and checking OCD symptoms.

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Crossref · 10.1176/appi.ajp.2008.08020320

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  • OCD is best conceptualized as a dimensional disorder with at least five consistently identified symptom dimensions.

    “Given the wide variation in the presentation of OCD, there is increasing evidence that it may be best conceptualized as a dimensional disorder and the following symptom dimensions have been most consistently identified: (a) contamination obsessions with cleaning/washing rituals, (b) doubts about harm with checking/reassurance seeking rituals, (c) obsessions relating to a need for symmetry, exactn”

    From An update on the efficacy of psychological treatments for obsessive-compulsive disorder in adults (2013) · cites this paper as Bloch et al., 2008

    The Discussion supports a dimensional approach, but identifies a fairly robust four-factor structure—not at least five consistently identified dimensions. It recommends specifying those four dimensions: symmetry, forbidden thoughts, cleaning, and hoarding. (LLM, conf=0.88)

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  • Hoarding consistently appears as a separate factor in many factor analytic studies.

    “Hoarding consistently appears as a separate factor in many factor analytic studies and represents a possible source of variability in results.”

    From The profile of executive function in OCD hoarders and hoarding disorder (2014) · cites this paper as Bloch et al., 2008

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Research works printed but not linked: 1

  1. [36]Stein DJ Andersen EW Overo KF Response of symptom dimensions in obsessive-compulsive disorder to treatment with citalopram or placebo Rev Bras Psiquiatr 2007 29 303 307 18200396

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Authors
Bloch, M. H., Landeros-Weisenberger, A., Rosario, M. C., Pittenger, C., & Leckman, J. F.
Affiliations
Yale University (US)
Venue
American Journal of Psychiatry
Published
2008-12
Volume
165
Issue
12
Pages
1532-1542
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W2113728266
Cited by
681
References
42
Citations by year
2026: 32 · 2025: 35 · 2024: 27 · 2023: 38 · 2022: 47 · 2021: 37 · 2020: 34 · 2019: 37 · 2018: 44 · 2017: 50 · 2016: 30 · 2015: 41 · 2014: 36 · 2013: 48 · 2012: 40
FWCI
6.02
Type
journal article
Language
en
Open access
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
Funders
National Institute of Mental Health (K05MH076273, K23MH091240, T32MH018268)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Social Sciences › Psychology › Clinical Psychology › Psychoanalysis and Psychopathology Research
Keywords
obsessive-compulsive disorder, symptom structure, factor structure, hoarding, checking compulsions
MeSH terms
Factor Analysis, Statistical, Humans, Obsessive-Compulsive Disorder, Surveys and Questionnaires, Severity of Illness Index, International Classification of Diseases, Diagnostic and Statistical Manual of Mental Disorders

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