Accuracy and precision of sonographic fetal weight estimation in Sweden.

ABSTRACT:

Introduction

Fetal growth assessment by ultrasound is an essential part of modern obstetric care. The formula by Persson and Weldner for estimated fetal weight (EFW), used in Sweden since decades, has not yet been evaluated. The objective of this study was to evaluate accuracy and precision of the formula by Persson and Weldner, and to compare it to two other formulae using biparietal diameter instead of head circumference.

Material and methods

The study population consisted of 31 521 singleton pregnancies delivered at 22⁺⁰ gestational weeks or later, with an ultrasound EFW performed within 2 days before delivery, registered in the Swedish Pregnancy Register between 2014 and 2021. Fetal biometric ultrasound measurements were used to calculate EFW according to the

SUBMITTER: Lindstrom L 

PROVIDER: S-EPMC10201965 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature