非肥胖孕妇孕期体重控制对妊娠结局的意义

Significance of controlling gestational weight of non-obese women on pregnant outcomes

目的:探讨孕期体重干预对非肥胖孕妇的可行性以及对妊娠结局的影响。方法:2006年1月～2007年12月在该院产科门诊定期产检单胎头位初产妇420例,要求首次就诊时体重指数为18～24并随机分为实验组和对照组,实验组孕妇接受体重干预教育,包括体重目标、均衡饮食、适量运动等,对照组接受常规产前检查。结果:实验组孕期平均体重增加(12.6±2.9)kg,对照组孕期平均体重增加(16.6±6.4)kg,实验组体重增加量低于对照组(P<0.05)。实验组实现孕期体重目标者178例,占87.68%,实验组妊娠期糖尿病或糖耐量异常的发生率为5.42%低于对照组的11.62%(P<0.05),实验组和对照组的新生儿出生体重差异无统计学意义,但实验组巨大儿的发生率7.39%低于对照组13.63%,实验组剖宫产率为52.22%低于对照组剖宫产率62.12%(P<0.05)。结论:非肥胖孕妇进行体重干预具有可行性,有利于良好的妊娠结局。

Objective：To explore the feasibility of gestational weight intervention on non-obese women and the effect of gestational weight gain intervention on pregnant outcomes.Methods：420 singleton,primiparous women whose body mass index（BMI） of first prenatal examination was 18～24 were divided into two groups randomly.Women in study group received gestational weight intervention,including goal weight,balanced diet and regular exercises;women in control group received conventional prenatal examination.Results：The mean gestational weight gain was（12.6±2.9） kg in study group,which was lower than that in control group（（16.6±6.4） kg）（P〈0.05）.87.68%（178 cases） of the women in study group gained weight during pregnancy in the predicated range.The incidence of gestational diabetes mellitus（GDM） or gestational impaired glucose tolerance（IGT） in study group was 5.42%,which was lower than that in control group（11.62%）（P〈0.05）.There was no significant difference in birth weight of neonates between study group and control group,but the incidences of macrosomia and caesarean section in study group（7.39%,52.22%） were significantly lower than those in control group（13.63%,62.12%）（P〈0.05）.Conclusion：Gestational weight intervention of non-obese women is feasible,which can improve the pregnant outcomes.