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Being overweight or obese was associated with an increased risk of still birth, large for gestational age, macrosomia, admission to the neonatal intensive care unit and LBW, while being underweight was associated with an increased risk of preterm birth, small for gestational age, and LBW. Women of childbearing age should maintain a normal body mass index before pregnancy.
Liu et al. (Thu,) studied this question.
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