





Effect of Maternal Smoking on Birth Outcomes
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Smoking is the second leading risk factor for global mortality. In the United States, 65 per cent of all infant deaths occur among low birth-weight (LBW) infants (<2500g); LBW infants account for 7.6 per cent of all live- born infants. Numerous studies have shown that maternal cigarette smoking during pregnancy is associated with reduced birth weight or increased risk of LBW . Maternal cigarette smoking is identified as the single largest modifiable risk factor for intrauterine growth restriction in developed countries.
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