Impact of fetal and maternal characteristics on the accuracy and precision of sonographic fetal weight estimation: population-based study.

ABSTRACT:

Objective

Ultrasound-based fetal growth assessment is an essential part of clinical decision-making in modern obstetric care. This study aimed to evaluate the impact of maternal and fetal characteristics on the accuracy and precision of sonographic fetal weight estimation.

Methods

We included 31 521 singleton pregnancies registered in the Swedish Pregnancy Register between January 2014 and December 2021, with delivery ≥ 22 + 0 weeks' gestation and estimated fetal weight (EFW) assessed using ultrasound within 2 days before delivery. Fetal biometric ultrasound measurements were used to calculate EFW according to the formula of Persson and Weldner. Mean percentage error (MPE) and the proportion of EFW within ± 10% of the birth weight were calculated and stratified by maternal b

SUBMITTER: Granfors M 

PROVIDER: S-EPMC12671939 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature