Obsessive-compulsive disorder as a risk factor for schizophrenia: a nationwide study.

IMPORTANCE Despite a remarkable co-occurrence of obsessive-compulsive disorder (OCD) and schizophrenia, little is known about the clinical and etiological relationship of these 2 disorders. Exploring the degree to which these disorders share etiological factors might provide useful implications for clinicians, researchers, and those with the disorders… CONTINUE READING