Congenital anomalies and early functional impairments in a prospective birth cohort: Risk of schizophrenia-spectrum disorder in adulthood

Abstract

Background: Adversities operating over intrauterine life have been associated with risk of schizophrenia, but the biology of resultant developmental perturbation is poorly understood. Aims: To examine the relationship of congenital anomalies and related functional impairments in infancy to risk of schizophrenia. Method: Using the Congenital Anomalies data-set from the Prenatal Determinants of Schizophrenia birth cohort, congenital anomalies and related functional impairments were categorised and related to subsequent risk of schizophrenia-spectrum disorder. Results: The presence of any hypothesis-based congenital anomaly or related functional impairment was associated with a doubling of risk of schizophrenia-spectrum disorder, in contrast, having any other congenital anomaly or related functional impairment was not associated with risk of schizophrenia-spectrum disorder. Conclusions: These findings constitute evidence for early events, which may result from both genetic predisposition and environmental insults, in the pathogenesis of schizophrenia. Declaration of interest: None. Funding detailed in Acknowledgements.