The Dimensional Yale–Brown Obsessive–Compulsive Scale (DY-BOCS): an instrument for assessing obsessive–compulsive symptom dimensions

Abstract

Obsessive-compulsive disorder (OCD) encompasses a broad range of symptoms representing multiple domains. This complex phenotype can be summarized using a few consistent and temporally stable symptom dimensions. The objective of this study was to assess the psychometric properties of the Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS). This scale measures the presence and severity of obsessive-compulsive (OC) symptoms within six distinct dimensions that combine thematically related obsessions and compulsions. The DY-BOCS includes portions to be used as a self-report instrument and portions to be used by expert raters, including global ratings of OC symptom severity and overall impairment. We assessed 137 patients with a Diagnostic and Statistical Manual-IV diagnosis of OCD, aged 6-69 years, from sites in the USA, Canada and Brazil. Estimates of the reliability and validity of both the expert and self-report versions of the DY-BOCS were calculated and stratified according to age (pediatric vs. adult subjects). The internal consistency of each of the six symptom dimensions and the global severity score were excellent. The inter-rater agreement was also excellent for all component scores. Self-report and expert ratings were highly intercorrelated. The global DY-BOCS score was highly correlated with the total Yale-Brown Obsessive-Compulsive Scale score (Pearson r = 0.82, P < 0.0001). Severity scores for individual symptom dimensions were largely independent of one another, only modestly correlated with the global ratings, and were also differentially related to ratings of depression, anxiety and tic severity. No major differences were observed when the results were stratified by age. These results indicate that the DY-BOCS is a reliable and valid instrument for assessing multiple aspects of OCD symptom severity in natural history, neuroimaging, treatment response and genetic studies when administered by expert clinicians or their highly trained staff.

Influence of specific obsessive-compulsive symptom dimensions on strategic planning in patients with obsessive-compulsive disorder

“…26 It has been shown to have excellent psychometric properties. 26 The instrument consists of 88 examples of OC symptoms, 26 accompanied by questions that assess their severity.…”

“…26 It has been shown to have excellent psychometric properties. 26 The instrument consists of 88 examples of OC symptoms, 26 accompanied by questions that assess their severity. The severity scores, divided into current and "worst-ever" scores, are based on how much patient time is lost in dealing with OC symptoms, as well as on the level of patient distress caused by those symptoms and the degree to which they impair patient quality of life.…”

The Association of Anger with Symptom Subtypes in Severe Obsessive-Compulsive Disorder Outpatients

“…Factor analytic studies regarding the clinical manifestations of OCD identified the following main symptom dimensions: symmetry/ordering, hoarding, contamination/cleaning, aggressive obsessions/checking, and sexual/religious obsessions [3]. Indeed, the identification of OCD subtypes may facilitate genetic, neurobiological, and treatment studies [4]. …”

Comparison of Early Maladaptive Schemas in Patients with Obsessive-Compulsive Disorder, Patients with Obsessive-Compulsive Personality Disorder with Healthy Individuals

“…Inter-rater reliability and test-retest (YBOCS) to assess the symptoms of OCD, but not in other disorders and depression have been reported suitable (Woody, Steketee, & Chambless, 1994;Tek, Ulu, & Gürsoy Rezaki, 1995). (Y-BOCS) was translated into 13 languages, and the reliability and validity of this scale in the research (Calamari, Wiegartz, & Janeck,1999;Moritz, Meie, & Kloss, 2002;Arrindell, Vlaming, Eisenhardt, & Berkum, 2002;Feinstein, Fallon, Petkova, & Liebowitz, 2003;Deacon, & Abramowitz, 2005;Storch, Shapira, Dimoulas, Geffken, & et al,2005;Rosario-Campos, Miguel, Quatrano, Chacon, & et al,2006;Stein, Andersen, & Overo, 2007;Cullen, & Brown, 2007; and many cultures (Mollard, Cottraux, & Bouvard, 1989;Nakajima, 1999;Woody, Steketee, & Chambless,1994;Rosas, Vega-Dienstmaier, Suarez, Vidal, & et al,2002;Jacobsen, Kloss, Fricke, Hand, & et al,2003) have been studied. In Iran only 3 study (Mohammad-khani, 1991;Bigham, 2000;Rajezi-Esfahani, Motaghipour, Kamkari, MCSER Publishing, Rome-Italy Vol 6 No 4 S2 July 2015 175…”