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Williams Obstetrics, 23e
| Section VII. Obstetrical Complications > |
Chapter 38. Fetal Growth Disorders
Sections: Fetal Growth Disorders: Introduction, Normal Fetal Growth, Fetal-Growth Restriction, Macrosomia, References.
Topics Discussed: fetus growth disorder.
Excerpt:"Each year, approximately 20 percent of the almost 4 million infants in the United States are born at the low and high extremes of fetal growth. Although most low-birthweight infants are preterm, approximately 3 percent are term. In 2006, 8.3 percent of infants weighed less than 2500 g at birth, whereas 7.8 percent weighed more than 4000 g. The proportion of those < 2500 g has increased by 22 percent since 1984 and by 8 percent since 2000. At the same time, the incidence of macrosomia—defined as birthweight > 4000 g—continues to decline as the distribution has shifted toward lower weights (Martin and colleagues, 2007, 2009)...."
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