The prevalence of comorbid obsessive-compulsive disorder in individuals with eating disorders: an epidemiological meta-analysis

Drakes, Dalainey H. (2021) The prevalence of comorbid obsessive-compulsive disorder in individuals with eating disorders: an epidemiological meta-analysis. Masters thesis, Memorial University of Newfoundland.

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The present study aimed to provide a meta-analytic estimate of the prevalence of obsessive-compulsive disorder (OCD) amongst those with a current primary eating disorder (ED) diagnosis, and to isolate predictors of comorbid OCD. An online search of PubMed and PsycINFO was conducted with a Boolean search phrase incorporating keywords related to OCD, EDs, comorbidity, prevalence, and epidemiology, complemented by reference review and contact with experts in the field. Articles were included if they (a) reported an observational study examining current ED diagnoses, (b) used a semi-structured or structured diagnostic interview for OCD and ED diagnosis, (c) applied DSM or ICD criteria, (d) included adolescent or adult samples (age > 12), (e) included patient or community samples, and (f) reported lifetime or current OCD comorbidity. From the 846 articles identified, 35 lifetime and 42 current estimates of comorbid OCD were calculated. Analyses revealed an aggregate lifetime OCD prevalence of 13.9% CI₉₅% [10.4 to 18.1] and current OCD prevalence of 8.7% CI₉₅% [5.8 to 11.8] across EDs. Moderator analyses revealed the prevalence of OCD to be greatest in anorexia nervosa binge-eating purging type, in patient versus community samples, among those with an earlier age of ED onset, and those with lower mean BMIs. Awareness of the populations at greatest risk of comorbid OCD in EDs will ensure appropriate diagnosis, while facilitating development of treatments targeting their shared etiology.

Item Type: Thesis (Masters)
Item ID: 15132
Additional Information: Includes bibliographical references (pages 87-122).
Keywords: obsessive-compulsive disorder, comorbidity, eating disorder, anorexia, bulimia, binge eating
Department(s): Humanities and Social Sciences, Faculty of > Psychology
Science, Faculty of > Psychology
Date: October 2021
Date Type: Submission
Digital Object Identifier (DOI):
Library of Congress Subject Heading: Obsessive-compulsive disorder--Psychological aspects; Eating disorders--Psychological aspects; Comorbidity--Statistics.

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