Risk Factors-Maternal Systemic disease: diabetes, heart or renal diseases. anemia. infectious diseases g Obstetric Conditions: hypertensive disease of pregnancy or pre-eclampsia, placental abruption Substance abuse: drug addiction, smoking P Maternal age: >35, or<16, multiple pregnancyRisk Factors-Maternal  Systemic disease: diabetes, heart or renal diseases, anemia, infectious diseases  Obstetric Conditions: hypertensive disease of pregnancy or pre-eclampsia, placental abruption  Substance abuse: drug addiction, smoking  Maternal age: >35, or <16, multiple pregnancy