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Fetal Diagn Ther. 2008;24(3):304-9. doi: 10.1159/000159269. Epub 2008 Oct 2.

Gender-specific weight estimation of fetuses between 2,501 and 3,999 g--new regression formulae.

Author information

1
Department of Obstetrics and Gynecology, Mannheim University Hospital, Mannheim, Germany. joern.siemer@gyn.ma.uni-heidelberg.de

Abstract

OBJECTIVE:

To develop new gender-specific regression formulae to estimate fetal weight focusing on a particular weight range from 2,501 to 3,999 g.

METHODS:

3,254 singleton pregnancies were included to generate new regression formulae for female and male fetuses, and to evaluate their accuracy.

RESULTS:

In comparison with commonly used formulae, the new gender-specific and weight-range-specific method of fetal weight estimation provided greater accuracy. The mean absolute error was less than 7%.

CONCLUSIONS:

When properly used, the new formulae can improve the accuracy of weight estimations in fetuses between 2,501 and 3,999 g.

PMID:
18832848
DOI:
10.1159/000159269
[Indexed for MEDLINE]
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