Season of birth in schizophrenia: evidence for confinement of an excess of winter births to patients without a family history of mental disorder

O'Callaghan E, Gibson T

1991

Ireland

Patients with schizophrenia are more often born in the late winter or spring. That is why the possible effects of exposure to influenza during pregnancy have been widely explored.

Increasing and converging evidence suggest that anomalies develop prenatally in schizophrenia. (See entry 0064 and 0065)