Eating disorders and obsessive–compulsive disorder: A dimensional approach to purported relations

Eating disorders in patients with obsessive–compulsive disorder: Prevalence and clinical correlates

“…In previous OCD clinical studies, the prevalence of comorbid ED ranged from 13 to 42% of the cases, 4 figures that are relatively higher than our finding of 11%. The lifetime prevalence of ED in our OCD sample study seems to be similar to the lifetime prevalence of 13% reported by Zimmerman et al 34 in a general psychiatric population of 2,500 outpatients.…”

“…Moreover, primarily diagnosed OCD patients have shown comorbidity with ED ranging from 13 to 42% of the cases. 3,4 Several lines of evidence are suggestive of an association between OCD and ED. These putative associations stem from shared characteristics involving the following: (1) psychopathologic similarities, such as obsessions related to food or eating patterns and compulsions associated with overeating (BN) or food restriction (AN) 5,6 ; (2) personality traits, such as perfectionism, meticulousness, and rigidity 7,8 ; (3) common neuropsychological impairments [9][10][11] ; (4) epidemiologic data, mainly concerning prevalence, similar age of onset, course of illness, comorbidities, and genetic loading in familial studies 12 ; (5) neurobiological hypotheses involving the serotonergic system in both conditions 13,14 ; and (6) therapeutic response to both pharmacological and psychotherapeutic approaches.…”

Why do eating disorders and obsessive–compulsive disorder co-occur?

“…Second, given that previous research indicates internalizing disorders are strongly associated with neuroticism-negative emotionality (Krueger, Caspi, Moffitt, & Silva, 1998), our results lend support to empirical classification models that place eating disorders within the internalizing spectrum (Forbush et al, 2010; Forbush & Watson, in press). Finally, Wu (2008) found that general distress failed to account for the association between compulsive hand washing and BULIT-R total score. Our results suggest these findings may be due to the presence of body dissatisfaction among those who binge and purge, and not bulimic symptoms per se.…”

The Padua Inventory–Washington State University Revision of Obsessions and Compulsions: A Reliability Generalization Meta-Analysis

“…Supplementary file 1 presents the references of the 112 studies that reported some reliability estimates with the data at hand. Of the 112, seven (Bhar & Kyrios, 2005;Elwood, Riskind, & Olatunji, 2011;Haslam, Williams, Kyrios, McKay, & Taylors, 2005;Nedeljkovic & Kyrios, 2007;Wu, 2008;Wu, Aardema, & O´Connor, 2009;Wu & Cortesi, 2009) could not be included in our RG meta-analysis for various reasons, such as reporting reliability coefficients as a range, dichotomization of PI-WSUR scores, or a combination of PI-WSUR subscales. The remaining 105 studies were included in our RG meta-analysis.…”