新生儿体重与孕妇年龄和体重指数的关系

目的：分析母亲年龄与新生儿出生体重的关系，以及孕期体重指数对新生儿出生体重的影响。方法：回顾性分析2005年1-12月在重庆医科大学附属第一医院产科出生的1301例新生儿体重；以及1999年1月至2003年7月在我院住院并进行阴道试产的初产妇576例，其中早孕期肥胖即体重指数（BMI）≥24有184例，分娩时肥胖（BMI）≥27有152例。观察出生体重与孕妇年龄和体重指数之间的关系。结果：在排出了妊娠合并糖尿病，非足月妊娠以及双胎、三胎妊娠，1301例新生儿平均出生体重为3396g．男婴平均出生体重为3453g，女婴为3397g，其中只有20-24岁组分娩的新生儿出生体重低于总体平均体重；早孕期肥胖孕妇巨大儿的发生率与对照组比较，差异有显著性，分娩时肥胖的产妇巨大儿的发生率与对照组比较，差异有显著性，早孕期体重增加≥15kg者巨大儿的发生率高于体重增加〈15kg者，差异有显著性。结论：母亲年龄过小影响胎儿生长发育，孕期母亲体重增长过多可导致巨大儿发生率增加。

The connection between the weight of the new born baby and the age and body mass index of the pregnant woman

Objective: To analyze the connection between the age of the mother and the birth weight of the new born baby as well as the impact of weight index during pregnancy on the birth weight of the new born baby.Method: Analyze the weight of the 1301 new born babies delivered from January to December 2005 in the First Affiliated Hospital of Chongqing University of Medical Sciences;analyze 576 first time lying-in women who had normal vagina delivery in the First Affiliated Hospital of Chongqing University of Medical Sciences from January 1999 to July 2003,among which there were 184 samples of corpulence during early period of pregnancy with BMI equal to or higher than 24 and 152 samples of corpulence during confinement with BMI equal to or higher than 27.Observe the connection between the birth weight and the age and BMI of pregnant women.Results: Excluding gestational diabetes,non-full-month gestation,double and triple embryo gestation,the average birth weight of 1301 new born babies was 3396g with the average birth weight of 3453g for male babies and 3397g for female babies respectively,among which only those women at the age between 20 and 24 had the new born babies with the weight lower than the average.Compared the corpulent during early period of pregnancy with the compared group,the happening rate of huge baby is evident.Compared the corpulent during confinement with the compared group,the happening rate of huge baby is evident.Compared the weight increase equal to or higher than 15kg during early period of pregnancy with the weight increase lower than 15kg,the happening rate of huge baby is evident.Conclusion: Too young the age of the mother has negative impact on the development of fetus.Too much increase of weight during pregnancy results in increasing happening rate of huge baby.