胎儿体重相关因素分析以及多元回归方程的建立

目的:寻找更为准确的预测胎儿体重的方法,并探讨腹围增加值在预测胎儿体重中的价值。方法:回顾性分析山东省烟台市芝罘区妇幼保健院2010年3月至12月期间出生的280例新生儿的临床资料,将孕妇身高、体重、孕期增重、宫高、足月腹围、孕期腹围增加值及胎儿的双顶径、股骨长等,与新生儿出生体重进行相关及回归分析,得出回归方程并检验其显著性和与实际出生体重的符合率,并与以往临床常用方法比较。结果:宫高、腹围增加值、双顶径和股骨长与胎儿体重显著相关,建立的多元回归方程计算胎儿体重预测值与实际胎儿体重符合率达70.71%,远高于其它方法。结论:采用宫高、腹围增加值、双顶径、股骨长建立的多元回归方程对胎儿体重预测符合率高,有较好的临床应用价值。

Clinical Analysis on Related Factors of Fetal Weight and the Multiple Regression Equation Establishment

Objective: To find more accurate estimation method for predicting fetal weight,and to explore the value of increased abdominal circumference in the estimation of fetal weight.Methods: The neonatal clinical data of 280 cases were retrospective analyzed,including matemal height,gestational weight,height of uterus,abdominal circumference,increased abdominal circumference and fetal biparietal diameter(BPD),femur length(FL),in Zhifu district,Yantai City hospital from march,2010 to december 2010.The chi-spuared test,correlation and regression analysis were used to get the regression equation.The fetal weight was calculated by the regression equa-tion.Results: The femur length(FL),increased abdominal circumference,biparietal diameter(BPD) and height of uterus were obviously correlation with the fetal weight.The multiple regression equation for calculation of fetal weight was established.The accordance rate of calculated fetal weight by this equation was 70.71 % with the actual fetal weight.It was more accurate than other methods.Conclusion: The multiple regression equations established by the height of uterus,increased abdominal circumference,biparietal diameter(BPD) and femur length(FL) was more accurate on the prediction of fetal weight.