本文使用直线法测量孕妇子宫底高度505例,弧线法522例,测量后均于一周内分娩,并记录新生儿体重.两组新生儿体重均呈正态分布.两种宫高测量法都能灵敏地反映出胎儿体重的增长情况.经将资料进行统计学处理,推导出两条回归方程.设宫高长度为x,胎儿体重为y,则直线法的回归方程为:y=116.28x-106.3 弧线法的回归方程为:y=80.26x+445.9 In this paper, 505 cases of pregnant women at the base of the uterus were measured by the straight line method, and 522 cases were measured by arc method. All the patients were delivered within one week after birth and the newborn’s weight was recorded. Can be sensitive to reflect the growth of fetal weight.After the data were statistically processed, two regression equations were derived.When the height of the palace is x and the weight of the fetus is y, the regression equation of the straight line method is: y = 116.28x The regression equation for the -106.3 arc method is: y = 80.26x + 445.9