Department of Obstetrics and Gynecology, University of Utah Health Sciences Center, Salt Lake City, UT, USA.
Am J Obstet Gynecol. 2010 Sep;203(3):279.e1-6. doi: 10.1016/j.ajog.2010.06.038.
The purpose of this study was to examine the association between gestational weight gain (GWG) in a woman's first and second pregnancies.
We conducted a retrospective observational cohort study of 27,771 women with their first and second births in North Carolina's Pregnancy Nutrition Surveillance System database from 1996-2004. GWG was categorized as inadequate, appropriate, or excessive, according to 2009 Institute of Medicine guidelines. Covariate adjusted polytomous logistic regression was used to test the association between GWG category in the first and second pregnancy.
Compared with women with appropriate GWG in their first pregnancy, women with excessive GWG in their first pregnancy had an odds ratio of 2.6 (95% confidence interval, 2.4-2.7) for excessive GWG in their second pregnancy. Women with inadequate GWG in their first pregnancy were similarly likely to repeat this category in their subsequent pregnancy.
GWG category in a woman's first pregnancy is a significant predictor of GWG category in her subsequent pregnancy.
本研究旨在探讨女性第一和第二胎孕期体重增加（GWG）之间的关联。
我们对北卡罗来纳州妊娠营养监测系统数据库中 1996 年至 2004 年间的 27771 名首次和第二次分娩的女性进行了回顾性观察性队列研究。根据 2009 年医学研究所的指南，GWG 被分为不足、适当和过多。采用多分类逻辑回归分析比较了第一和第二孕期 GWG 类别之间的关联。
与第一孕期 GWG 适当的女性相比，第一孕期 GWG 过多的女性在第二孕期 GWG 过多的比值比为 2.6（95%置信区间，2.4-2.7）。第一孕期 GWG 不足的女性在随后的妊娠中同样有可能重复这一类别。
女性第一胎孕期 GWG 类别是其后续孕期 GWG 类别的重要预测指标。
