Epidemiology
Studies show that BDD is common in not only non-clinical settings but clinical settings as well. A study was performed on 200 people with DSM-IV Body Dysmorphic Disorder, being of age 12 or older and being available to be interviewed in person. They were referred by mental health professionals, friends and relatives, non-psychiatric physicians or responded to advertisements. Out of the subjects, 53 were receiving medication, 33 were receiving psychotherapy, and 48 were receiving both medication and psychotherapy.
The severity of BDD was assessed using the Yale–Brown Obsessive Compulsive Scale modified for BDD, and symptoms were assessed using a Body Dysmorphic Disorder Examination Sheet. Both tests were designed specifically to assess BDD. The results showed that BDD occurs in 0.7–1.1% of community samples and 2–13% of non-clinical samples. 13% of psychiatric inpatients were diagnosed with BDD. Some of the patients initially diagnosed with obsessive-compulsive disorder (OCD) had BDD, as well.
53 patients with OCD and 53 patients with BDD were compared on clinical features, comorbidity, family history, and demographic features. Nine of the 62 subjects (14.5%) of those with OCD also had BDD.
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