psychiatric disorders
Schizoid Personality Disorder (ScPD)
Introduction
Schizoid personality disorder is characterized by a pervasive pattern of detachment from and general disinterest in social relationships and a limited range of emotions in interpersonal relationships. Diagnosis is by clinical criteria. Treatment is with cognitive-behavioral therapy. (See also Overview of Personality Disorders .) In schizoid personality disorder, the ability to relate to others meaningfully is limited. The estimated median prevalence is 0.9% but may be as high as 3.1% ( General references ). Some studies suggest it is slightly more common among men, whereas other studies find no gender difference. Schizoid personality disorder may be more common among people with a family history of schizophrenia or schizotypal personality disorder. are common. Up to half of patients have had at least one episode of Major depressive disorder (unipolar depressive disorder) . They often also have other 