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Cited by 475

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How to construct ‘normal ranges’ for fetal variables

Royston, P., Wright, E.M.·1998·Ultrasound in Obstetrics & Gynecology

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. Copyright © 1998 International Society of Ultrasound in Obstetrics and Gynecology

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Crossref · 10.1046/j.1469-0705.1998.11010030.x

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Metadata

Authors
Royston, P., & Wright, E. M.
Venue
Ultrasound in Obstetrics & Gynecology
Publisher
Wiley
Published
1998-01
Volume
11
Issue
1
Pages
30-38
ISSN
  • 0960-7692 (ISSN-L)
  • 1469-0705
OpenAlex
W2034503168
Cited by
475
References
0
FWCI
3.81
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: How to construct ‘normal ranges’ for fetal variables. https://app.cochat.ai/papers/10.1046/j.1469-0705.1998.11010030.x
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Royston, P., & Wright, E. M. (1998). How to construct ‘normal ranges’ for fetal variables. Ultrasound in Obstetrics & Gynecology. https://doi.org/10.1046/j.1469-0705.1998.11010030.x

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.