流动人群中孕妇孕前BMI及孕期体重增长对新生儿体重的影响  

Effects of BMI before Pregnancy and Weight Gain during Pregnancy on Neonatal Weight in Floating Population

作　　者：蔡毅媛[1] 徐琨[2] 许艳晶 周佳敏[4] 龙凤鸣 宋泳红[2] 

机构地区：[1]贵阳医学院公共卫生学院,贵州贵阳550004 [2]贵阳医学院护理学院,贵州贵阳550004 [3]贵阳医学院附院妇产科,贵州贵阳550004 [4]贵阳市第一人民医院妇产科,贵州贵阳550002 [5]贵阳市金阳医院妇产科,贵州贵阳550023

出　　处：《贵阳医学院学报》2014年第4期504-507,510,共5页Journal of Guiyang Medical College

基　　金：贵州省卫生厅科学技术项目基金(GZWJ2010-1-021)

摘　　要：目的:分析流动人群中孕妇孕前体质指数(body mass index,BMI)及孕期体重增长情况及对新生儿体重的影响。方法:用随机抽样及历史性队列研究的方法,以美国医学会(institute of medicine,IOM)2009年最新修订的孕妇孕期增重指南为标准,分析1 151例孕妇(流动人口302例,非流动人口849例)孕前BMI、孕期增重情况及对新生儿体重的影响。结果:非流动人群与流动人群孕妇孕前BMI、孕期增重情况比较,差异无统计学意义(P>0.05);非流动人群孕妇中,不同孕前体重的孕妇孕期体重增长情况差异无统计学意义(χ2=7.330,P=0.119),流动人群中孕妇孕前为消瘦、肥胖及超重的孕妇,孕期体重增长过多者均较多,差异有统计学意义(χ2=21.374,P<0.01);非流动人群孕妇中孕前超重及肥胖、孕期增重过多者生产巨大儿的几率较高,孕前消瘦、孕期增重不足者生产低体重儿的几率较高,差异有统计学意义(P<0.05);流动人口孕妇中,仅有孕期增重对新生儿体重有影响,增重过多者生产巨大儿的几率较高;增重不足者生产低体重儿的几率较高(P<0.05)。结论:流动人群中,孕期增重不合理者较多,非流动人群孕妇孕前BMI、孕期增重影响新生儿体重,流动人群孕妇孕期增重对新生儿体重有影响。Objective： To analyze the effect gain during pregnancy on neonatal weight in pling and historical cohort were adopted, the of body mass index （BMI） before pregnancy and weight floating population. Methods： Method of random sam- latest weight gain guidline of the pregnant women during pregnancy revised by American institute of medicine （IOM） in 2009 was used as the standard, BMI before pregnancy and weight gain during pregnancy of 1 151 pregnant women （302 floating population and 849 non floating population） and the effects of them on neonatal weight was analyzed. Results： There was no statistical difference in BMI before pregnancy and only weight gain during pregnancy be- tween native gravidas and nonnative gravidas （ P 〉 0.05 ）. There was no significant difference in the weight gain during pregnancy in native gravidas with different BMI before pregnancy, statistically insig-nificant （χ2 = 7. 330 ,P = 0.119）. Otherwise, more lean, obese and overweight nonnative gravidas got excessive weight gain during pregnancy with statistical significance （χ2 = 21. 374 ,P 〈0. 001 ）. The in- cidence of having giant baby in obese and overweight native gravidas was relatively high, and the inci- dence of low-birth weight in lean and insufficient weight gain native gravidas was relatively high with statistical significance （ P 〈 0.05 ）. In normative gravidas, only weight gain during pregnancy affected neonatal weight, excessive weight gain ones were more likely to have giant babies, while insufficient weight gain ones were more likely to have low-birth weight infants （ P = O. 005 ）. Conclusions： In float- ing population, more gravidas get unreasonable weight gain during pregnancy. The pre-pregnant BMI and weight gain during pregnancy affect the neonatal birthweight in native gravidas, and only weight gain during pregnancy affects neonatal birthweight in nonnative gravidas.

关 键 词：流动人口 孕妇 体重指数 体重增长 出生体重 妊娠结局 

分 类 号：R173[医药卫生—妇幼卫生保健]