Neonatal mortality and morbidity rates in term twins with advancing gestational age

被引:22
|
作者
Soucie, Jennifer E. [1 ]
Yang, Quiying [1 ]
Wen, Shi Wu [1 ]
Fung, Karen Fung Kee [1 ]
Walker, Mark [1 ]
机构
[1] Univ Ottawa, Ottawa Hlth Res Inst, OMNI Res Grp,Ottawa Hosp, Obstet & Gynecol & Clin Epidemiol Program, Ottawa, ON K1H 8L6, Canada
关键词
twins; gestational age; morbidity; mortality;
D O I
10.1016/j.ajog.2006.01.018
中图分类号
R71 [妇产科学];
学科分类号
100211 ;
摘要
Objective: The purpose of this study was to identify the gestational age with the lowest morbidity and mortality rates for twin pregnancies that reach term. Study design: A retrospective cohort study carried out with 60,443 twin pairs from the United States (1995-1997). Analysis was restricted to pregnancies that had reached at least 37 weeks of gestation; groups were created on the basis of the gestational ages of 37, 38, 39, and >= 40 weeks. The incidence of death and morbidity were calculated; multiple logistic regression models were used to estimate the independent effect of gestational age for twin A and B. Results: The neonatal mortality rate increased significantly after 40 weeks of gestation (twin A: 3.47 [95% CI, 2.29, 5.38]; twin B, odds ratio, 2.52 [95% CI, 1.75, 3.67]). There was also odds ratio, an increased risk of neonatal morbidity in the 40 weeks of gestation group for twin A and B (Apgar score, <= 3; odds ratio, 1.88 [95% CI, 1.18, 3.02], 1.74 [95% CI, 1.21, 2.52], respectively). There was a decreased risk of assisted ventilation in the 38 and 39 weeks of gestation group for twin A (odds ratio, 0.86 [95% CI, 0.77, 0.97], odds ratio, 0.83 [95% CI, 0.72, 0.95], respectively) and a decreased risk in the 39 and > 40 weeks of gestation groups for twin B (assisted ventilation: 0.83 [95% CI, 0.73, 0.93], odds ratio, 0.81 [95% CI, 0.72, 0.92], respectively). odds ratio, Conclusion: This study suggests that the optimal date of delivery for twins should be < 40 weeks of gestation; there was no compelling evidence for delivering at < 38 weeks of gestation. (c) 2006 Mosby, Inc. All rights reserved.
引用
收藏
页码:172 / 177
页数:6
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