Schizotypal Personality Disorder in Parents and the Risk for Schizophrenia in Siblings

Abstract excerpt

With on exception, previous studies examining the familial relationship between schizotypal personality disorder (SPD) and schizophrenia have compared rates of SPD in relatives of probands with schizophrenia versus control probands. In the Roscommon Family Study, an epidemiologically based family study of major psychiatric disorders conducted in the west of Ireland, we used a Cox proportional hazards model to...