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New and improved Israeli reference of birth weight, birth length, and head circumference by gestational age: a

Shmuel Davidson1, Nir Sokolover, Avi Erlich

  • 1Department of Neonatology, Rabin Medical Center (Beilinson Campus), Petah Tikva, Israel. shmueld@clalit.org.il

The Israel Medical Association Journal : IMAJ
|April 25, 2008
PubMed

Insights

New Israeli growth references for birth weight, length, and head circumference were developed. These updated standards improve accuracy for assessing neonatal growth and public health comparisons.

Area of Science:

  • Neonatalogy
  • Pediatric Growth Standards
  • Public Health

Background:

  • Current neonatal growth references in Israel are outdated (pre-1970).
  • A recent population-based reference inaccurately overestimated premature infant weights.

Purpose of the Study:

  • To establish a national reference for fetal growth parameters in Israel.
  • Develop gender-specific references for birth weight, length, and head circumference by gestational age.

Main Methods:

  • Utilized data from 82,066 singleton live births (1991-2005) at Rabin Medical Center.
  • Gestational age determined by last menstrual period or early fetal ultrasound.
  • Excluded neonates with implausible birth weights for gestational age.

Main Results:

  • Developed gender-specific fetal growth references that differ significantly from existing Usher curves.
  • New references corrected the overestimation of premature infant weights seen in a recent population-based study.
  • Validated the accuracy of birth weight, length, and head circumference measurements.

Conclusions:

  • The new hospital-based references provide improved accuracy for assessing neonatal growth in Israel.
  • These references can enhance the definition of normal and abnormal fetal growth.
  • Implementation can lead to better neonatal care and more reliable public health comparisons.
Abstract

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