How to construct 'normal ranges' for fetal variables

被引：408

作者：

Royston, P ^{[1
]}

Wright, EM ^{[1
]}

机构：

[1] Hammersmith Hosp, Royal Postgrad Med Sch, Dept Med Stat & Evaluat, London W12 0NN, England

来源：

ULTRASOUND IN OBSTETRICS & GYNECOLOGY | 1998年 / 11卷 / 01期

关键词：

normal ranges; reference intervals; gaussian distribution; statistical methods;

D O I：

10.1046/j.1469-0705.1998.11010030.x

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A method to estimate reference intervals which depend on gestational age is described. The approach is based on standard statistical techniques, so implementation should be straightforward with most statistical packages. The reference limits are defined by simple formulae which may be plotted as smooth curves. The method is illustrated with analyses of three real datasets arising from different aspects of fetal monitoring.

引用

页码：30 / 38

页数：9

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