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摘要目的：分析妊娠期糖尿病（GDM）孕妇产前体质量（BMI）指数对分娩方式及新生儿体重的影响。方法：收集2010 年5 月至 2012 年5月于我院产科分娩的GDM孕妇资料，共117 例，按照BMI 分级标准将所有产妇分为低体重组（18 例）、正常体重组（65 例）、超体重组（21 例）、肥胖组（13 例），比较四组产妇分娩方式及新生儿出生体重。结果：低体重组、正常体重组顺产率分别为 55.56%、61.54%，明显高于超体重组38.10%、肥胖组15.38%（x2=11.035，P=0.012）；而肥胖组剖宫产率85.62%又高于超体重组 61.90%，比较差异具有统计学意义（P<0.05）。低体重组、正常体重组新生儿巨大儿发生率分别为5.56%、9.23%，低于超体重组 33.33%、肥胖组46.15%，差异具有统计学意义（P<0.05）。结论：GDM孕前BMI与孕妇妊娠结局密切相关，孕前积极检查，将BMI 控制在25 以下，可有效降低剖宫产率及巨大儿的发生率。

英文摘要:

ABSTRACT Objective：To investigate the effect of gestational diabetes mellitus pregnant women pre-delivery body mass index on the mode of delivery and neonatal weight.Methods： 117 GDM women were collected who were in obstetric of our hospital from May 2010 to May 2012. According to the BMI classification standard, 117 GDMwomen were divided into the low-weight group (18 cases), the normal weight group (65 cases), the ultra-weight group (21 cases) and the observation group (13 patients). Maternal mode of delivery and neonatal birth weight in the four groups was compared.Results：The eutocia rate in the low-weight group, the normal weight group, were 55.56%,61.54%, respectively, which was significantly higher than those in the ultra-weight group (38.10%) and the obese group (15.38%). Cesarean delivery rat was 85.62%in the obese group which was higher than that in the ultra weight group (61.90%). The difference was statistically significant（P<0.05）. The newborn huge child incidence in the low-weight group, the normal weight group, was 5.56%, 9.23%, which was significantly lower than that in the ultra-weight group (33.33%) and the obese group (46.15%). The difference was statistically significant（P<0.05）Conclusion： The BMI of GDM pregnancy is closely related to pregnancy outcomes of pregnant women. The preconception well check and the BMI level was less than 25, which can effectively reduce the incidence of cesarean section rate and huge children.

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