Exploring yale-brown obsessive-compulsive scale symptom structure in Iranian OCD patients using item-based factor analysis

Asadi, Sareh; Daraeian, Azin; Rahmani, Behrouz; Kargari, Atiye; Ahmadiani, Abolhassan; Shams, Jamal

doi:10.1016/j.psychres.2016.08.028

Cited by 17 publications

(12 citation statements)

References 27 publications

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“…Exploratory factor analysis was conducted in both item and category levels as explained previously (Asadi et al, 2016). Briefly, exploratory factor analysis was conducted on YBOCS checklist data using the maximum likelihood estimation method, followed by varimax rotation.…”

Section: Discussionmentioning

confidence: 99%

“…Exploratory factor analyses at item level resulted in five factors (Table 2): 1. aggression obsessions and related checkings; 2. contamination obsessions and cleaning compulsions; 3. hoarding obsession and compulsion, symmetry obsession, repeating, counting, ordering and arranging compulsions; 4. sexual obsessions and 5. somatic obsessions and checking compulsion tied to somatic obsessions (Asadi et al, 2016).…”

Section: Factor Analysesmentioning

confidence: 99%

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A critical appraisal of heterogeneity in Obsessive-Compulsive Disorder using symptom-based clustering analysis

Hasanpour

Asadi

Meibodi

et al. 2017

Asian Journal of Psychiatry

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Obsessive-compulsive disorder (OCD) encompasses a broad range of symptoms and is commonly considered a heterogeneous condition. Attempts were made to define discrete OCD subtypes using a range of symptom-based methods including factor and cluster analyses. The present study aims to find the most appropriate clustering model based on Yale-Brown obsessive-compulsive scale (YBOCS) checklist explaining OCD heterogeneity. Five different clustering algorithms (FCM, K-means, Ward, Ward+K-means and Complete) applied on YBOCS symptoms of 216 patients with OCD. Data studied as four different sets including item-level raw data, item-based factor scores, category-level raw data and category-based factor scores and clustering results for 2 to 6 cluster solutions evaluated by four clustering indices (Davies-Bouldin, Calinski-Harabasz, Silhouettes and Dunn indices). Two-cluster solution was detected as the most appropriate model for item and category-based clustering analyses of YBOCS checklist symptoms. Patients in each cluster were characterized based on their clinical and demographic properties and results showed that they had similar patterns of symptoms but in different severities. Heterogenity of OCD based on the YBOCS-symptoms has been challenged as OCD patients were classified based on their symptom severity not their symptom patterns. More investigations need to find appropriate measures explaining OCD heterogeneity with clinical importance.

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Section: Discussionmentioning

confidence: 99%

Section: Factor Analysesmentioning

confidence: 99%

A critical appraisal of heterogeneity in Obsessive-Compulsive Disorder using symptom-based clustering analysis

Hasanpour

Asadi

Meibodi

et al. 2017

Asian Journal of Psychiatry

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“…Significant two-tailed p-value was regarded as values less than 0.008 after Bonferroni correction for genetic association analyses and less than 0.05 for the pharmacogenetic study. Item-based exploratory factor analysis was conducted on Y-BOCS checklist data using the maximum likelihood estimation method, followed by varimax rotation [46]. Results specified five factors including aggression/ checking, contamination/cleaning, symmetry/ordering/repeating/ counting/hoarding, sexual and somatic.…”

Section: Statisticsmentioning

confidence: 99%

SCL6A4 polymorphisms rs25533 and I425V: Association with obsessive–compulsive disorder and its treatment response in Iranian patients

Ahmadipour

Rashidi

Ahmadiani

et al. 2018

Personalized Medicine in Psychiatry

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“…Their category-level analysis using the original categories showed a four-factor or five-factor solution, and their item-analysis showed a three-factor solution. Asadi et al (2016) used a self-report version of the Y-BOCS-SC in a sample of 216 patients. In an item-level analysis, they found a five-factor structure.…”

Section: Introductionmentioning

confidence: 99%

Examining the factor structure of the self-report Yale-Brown Obsessive Compulsive Scale Symptom Checklist

Mortier

Visser

Balkom

et al. 2019

Psychiatry Research

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Obsessive-compulsive symptom dimensions are important in studies about the pathogenesis and treatment of obsessive-compulsive disorder. More than 30 factor analytic studies using the Yale-Brown Obsessive Compulsive Scale Symptom Checklist (Y-BOCS-SC) interview version have been published. However, a drawback of the Y-BOCS-SC interview is that it is time-consuming for the clinician. Baer's self-report version of the Y-BOCS-SC could be a less time-consuming alternative. The purpose of this study was to examine the factor structure of Baer's self-report Y-BOCS-SC. In a sample of 286 patients, we performed two factor analyses, one using categories and one using items of the Y-BOCS-SC. Using category-level data, we identified four factors; when using items we identified six factors. Symptom dimensions for contamination/cleaning, symmetry/repeating/counting/ordering and hoarding were found in both analyses. The impulsive aggression, pathological doubt, sexual, religious somatic and checking categories formed one factor in the analysis using category-level data and divided into three factors using item-level data. These factors correspond with studies using the interview version and support our hypothesis that the self-report version of the Y-BOCS-SC could be an alternative for the interview version.

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Exploring yale-brown obsessive-compulsive scale symptom structure in Iranian OCD patients using item-based factor analysis

Cited by 17 publications

References 27 publications

A critical appraisal of heterogeneity in Obsessive-Compulsive Disorder using symptom-based clustering analysis

A critical appraisal of heterogeneity in Obsessive-Compulsive Disorder using symptom-based clustering analysis

SCL6A4 polymorphisms rs25533 and I425V: Association with obsessive–compulsive disorder and its treatment response in Iranian patients

Examining the factor structure of the self-report Yale-Brown Obsessive Compulsive Scale Symptom Checklist

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