How to construct 'normal ranges' for fetal variables.

P Royston; E M Wright

doi:10.1046/j.1469-0705.1998.11010030.x

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PubMed · 9511193

How to construct 'normal ranges' for fetal variables.

P Royston·E M Wright

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Abstract

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.

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Cephalometry Fetus Gestational Age Hemoglobins Humans Kidney Models, Statistical Normal Distribution Reference Values Regression Analysis Ultrasonography, Prenatal Journal Article Research Support, Non-U.S. Gov't

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P Royston, E M Wright. 1998. How to construct 'normal ranges' for fetal variables.. https://doi.org/10.1046/j.1469-0705.1998.11010030.x

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