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Neonatal morbidity according to gestational age and birth weight from five tertiary care centers in the United States, 1983 through 1986.

Abstract：

OBJECTIVES:This study details the incidence, by gestational age and birth weight, of specific neonatal morbidities in singleton neonates without major congenital anomalies. STUDY DESIGN:Data were prospectively collected on all deliveries at five tertiary centers in the United States during the years 1983 through 1986. Pregnancies were meticulously dated and the gestational ages of the neonates at delivery were confirmed by Dubowitz score. RESULTS:The incidence of respiratory distress syndrome gradually decreases with increasing gestational age until 36 weeks. A marked decrease in the incidence of necrotizing enterocolitis, patent ductus arteriosus, intraventricular hemorrhage, and sepsis occurs after 32 completed weeks. The number of days of mechanical ventilation for respiratory distress syndrome and newborn stay in the tertiary care facility also were significantly reduced after 32 weeks. CONCLUSIONS:The incidence of both respiratory distress syndrome and patent ductus arteriosus is markedly decreased by both increasing gestational age and birth weight. The incidence of grade III and IV intraventricular hemorrhage, necrotizing enterocolitis, and sepsis virtually vanishes after 34 weeks. These data relating neonatal morbidities to gestational age are important to the obstetrician in the critical decision regarding the timing of delivery and to the parents, who can benefit from a realistic prediction of the neonatal course.

journal_name

Am J Obstet Gynecol

journal_title

American journal of obstetrics and gynecology

authors

Robertson PA,Sniderman SH,Laros RK Jr,Cowan R,Heilbron D,Goldenberg RL,Iams JD,Creasy RK

doi

10.1016/0002-9378(92)91551-k

subject

Has Abstract

pub_date

1992-06-01 00:00:00

pages

1629-41; discussion 1641-5

issue

6 Pt 1

eissn

0002-9378

issn

1097-6868

pii

0002-9378(92)91551-K

journal_volume

166

pub_type

杂志文章

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