Effect of illness expression and liability on familial associations of clinical and subclinical psychosis phenotypes.

Abstract excerpt

OBJECTIVE: Given the familial influences on schizophrenia, it may be hypothesized that specific symptom domains also cluster within families, and that this applies to both clinical and subclinical levels of expression. This hypothesis was put to the test in a group of patients with a DSM-IV diagnosis of psychotic disorder together with their unaffected siblings, and a group of healthy sib-pairs. METHOD:...

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