【摘要】 对301例13～38周胎儿的身长、顶臀长进行了测量,数据用 AppleⅡ微机做了统计学处理,得出以胎龄为自变量,身长和项臀长为因变量的回归方程.并计算了不同胎龄的平均数、标准误、标准差及95%可信区间,数据与国内、外文献资料进行了比较。更多还原

【Abstract】 The standing length and crown rump length of 129 human fetuses from 13 to 38 weeks of age were measured.The data were analys- ed with an Apple (?) computer.The regression equation that age of fetus is in dependent rariable and standing length and crown rump length are dependent variable was obtained.The average and stand- ard deviation and standard error and 95% confidence interval of diff- erent ages of fetus were calculated.The data obtained were compared with internal and external citerature about this subject.更多还原