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The Brief Obsessive-Compulsive Scale (BOCS): a self-report scale for OCD and obsessive-compulsive related disorders.

Bejerot S, Edman G, Anckarsäter H, Berglund G, Gillberg C, Hofvander B, Humble MB, Mörtberg E, Råstam M, Ståhlberg O, Frisén L - Nord J Psychiatry (2014)

Bottom Line: Sensitivities, specificities and internal consistency for both the Symptom Checklist and the Severity Scale emerged high (Symptom Checklist: sensitivity = 85%, specificities = 62-70% Cronbach's α = 0.81; Severity Scale: sensitivity = 72%, specificities = 75-84%, Cronbach's α = 0.94).The BOCS has the ability to discriminate OCD from other non-OCD related psychiatric disorders.The current study provides strong support for the utility of the BOCS in the assessment of obsessive-compulsive symptoms in clinical psychiatry.

View Article: PubMed Central - PubMed

Affiliation: Susanne Bejerot, M.D., Ph.D., Associate Professor, Department of Clinical Neuroscience, Karolinska Institutet , Stockholm , Sweden.

ABSTRACT

Background: The Brief Obsessive Compulsive Scale (BOCS), derived from the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) and the children's version (CY-BOCS), is a short self-report tool used to aid in the assessment of obsessive-compulsive symptoms and diagnosis of obsessive-compulsive disorder (OCD). It is widely used throughout child, adolescent and adult psychiatry settings in Sweden but has not been validated up to date.

Aim: The aim of the current study was to examine the psychometric properties of the BOCS amongst a psychiatric outpatient population.

Method: The BOCS consists of a 15-item Symptom Checklist including three items (hoarding, dysmorphophobia and self-harm) related to the DSM-5 category "Obsessive-compulsive related disorders", accompanied by a single six-item Severity Scale for obsessions and compulsions combined. It encompasses the revisions made in the Y-BOCS-II severity scale by including obsessive-compulsive free intervals, extent of avoidance and excluding the resistance item. 402 adult psychiatric outpatients with OCD, attention-deficit/hyperactivity disorder, autism spectrum disorder and other psychiatric disorders completed the BOCS.

Results: Principal component factor analysis produced five subscales titled "Symmetry", "Forbidden thoughts", "Contamination", "Magical thoughts" and "Dysmorphic thoughts". The OCD group scored higher than the other diagnostic groups in all subscales (P < 0.001). Sensitivities, specificities and internal consistency for both the Symptom Checklist and the Severity Scale emerged high (Symptom Checklist: sensitivity = 85%, specificities = 62-70% Cronbach's α = 0.81; Severity Scale: sensitivity = 72%, specificities = 75-84%, Cronbach's α = 0.94).

Conclusions: The BOCS has the ability to discriminate OCD from other non-OCD related psychiatric disorders. The current study provides strong support for the utility of the BOCS in the assessment of obsessive-compulsive symptoms in clinical psychiatry.

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Related in: MedlinePlus

(a) Receiver operating characteristics (ROC) curve for the Brief Obsessive–Compulsive Scale (BOCS) symptom checklist; (b) ROC curves for the BOCS severity scale.
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Figure 2: (a) Receiver operating characteristics (ROC) curve for the Brief Obsessive–Compulsive Scale (BOCS) symptom checklist; (b) ROC curves for the BOCS severity scale.

Mentions: Sensitivity and specificity for OCD diagnosis for the symptom checklist was calculated. The cut-off score was set to 0.15 representing a mean endorsement of 15% of the items; this divided the total sample into two equally sized groups (55% below and 45% above the cut-off). The sensitivity was very high with 85% of the OCD patients being correctly identified. The specificity was somewhat lower; 62% of the patients with ASD, 69% of the ADHD patients, and 70% of the patients with other various diagnoses were correctly identified as not having an OCD diagnosis. A ROC curve of the BOCS checklist yielded an area under the curve (AUC) of 0.79 and 0.80 for the BOCS severity scale (Fig. 2).


The Brief Obsessive-Compulsive Scale (BOCS): a self-report scale for OCD and obsessive-compulsive related disorders.

Bejerot S, Edman G, Anckarsäter H, Berglund G, Gillberg C, Hofvander B, Humble MB, Mörtberg E, Råstam M, Ståhlberg O, Frisén L - Nord J Psychiatry (2014)

(a) Receiver operating characteristics (ROC) curve for the Brief Obsessive–Compulsive Scale (BOCS) symptom checklist; (b) ROC curves for the BOCS severity scale.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4221004&req=5

Figure 2: (a) Receiver operating characteristics (ROC) curve for the Brief Obsessive–Compulsive Scale (BOCS) symptom checklist; (b) ROC curves for the BOCS severity scale.
Mentions: Sensitivity and specificity for OCD diagnosis for the symptom checklist was calculated. The cut-off score was set to 0.15 representing a mean endorsement of 15% of the items; this divided the total sample into two equally sized groups (55% below and 45% above the cut-off). The sensitivity was very high with 85% of the OCD patients being correctly identified. The specificity was somewhat lower; 62% of the patients with ASD, 69% of the ADHD patients, and 70% of the patients with other various diagnoses were correctly identified as not having an OCD diagnosis. A ROC curve of the BOCS checklist yielded an area under the curve (AUC) of 0.79 and 0.80 for the BOCS severity scale (Fig. 2).

Bottom Line: Sensitivities, specificities and internal consistency for both the Symptom Checklist and the Severity Scale emerged high (Symptom Checklist: sensitivity = 85%, specificities = 62-70% Cronbach's α = 0.81; Severity Scale: sensitivity = 72%, specificities = 75-84%, Cronbach's α = 0.94).The BOCS has the ability to discriminate OCD from other non-OCD related psychiatric disorders.The current study provides strong support for the utility of the BOCS in the assessment of obsessive-compulsive symptoms in clinical psychiatry.

View Article: PubMed Central - PubMed

Affiliation: Susanne Bejerot, M.D., Ph.D., Associate Professor, Department of Clinical Neuroscience, Karolinska Institutet , Stockholm , Sweden.

ABSTRACT

Background: The Brief Obsessive Compulsive Scale (BOCS), derived from the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) and the children's version (CY-BOCS), is a short self-report tool used to aid in the assessment of obsessive-compulsive symptoms and diagnosis of obsessive-compulsive disorder (OCD). It is widely used throughout child, adolescent and adult psychiatry settings in Sweden but has not been validated up to date.

Aim: The aim of the current study was to examine the psychometric properties of the BOCS amongst a psychiatric outpatient population.

Method: The BOCS consists of a 15-item Symptom Checklist including three items (hoarding, dysmorphophobia and self-harm) related to the DSM-5 category "Obsessive-compulsive related disorders", accompanied by a single six-item Severity Scale for obsessions and compulsions combined. It encompasses the revisions made in the Y-BOCS-II severity scale by including obsessive-compulsive free intervals, extent of avoidance and excluding the resistance item. 402 adult psychiatric outpatients with OCD, attention-deficit/hyperactivity disorder, autism spectrum disorder and other psychiatric disorders completed the BOCS.

Results: Principal component factor analysis produced five subscales titled "Symmetry", "Forbidden thoughts", "Contamination", "Magical thoughts" and "Dysmorphic thoughts". The OCD group scored higher than the other diagnostic groups in all subscales (P < 0.001). Sensitivities, specificities and internal consistency for both the Symptom Checklist and the Severity Scale emerged high (Symptom Checklist: sensitivity = 85%, specificities = 62-70% Cronbach's α = 0.81; Severity Scale: sensitivity = 72%, specificities = 75-84%, Cronbach's α = 0.94).

Conclusions: The BOCS has the ability to discriminate OCD from other non-OCD related psychiatric disorders. The current study provides strong support for the utility of the BOCS in the assessment of obsessive-compulsive symptoms in clinical psychiatry.

Show MeSH
Related in: MedlinePlus