Possible causes of Schizophrenia: A Comparison Odds Ratio 0 3 5 6 8 910 Place/time of birth Winter Urban Influenza Respiratory Infection Rubella Poliovirus CNS Famine Bereavement Prenatal Flood Unwantedness Maternal depr Rh incompatibility Hypoxia Obstetric CNS damage Low birth weight Pre-eclampsia Family history