Academic Editor: Sotirios Sotiriou
Background:
Variations in foetal growth between populations should not be ignored, and a
single universal standard is not appropriate for everyone. Therefore, it is
necessary to develop a new ultrasound estimation equation that
adapts better to regional population characteristics. The purpose of this study
was to create a new equation for ultrasound estimation of
foetal weight according to the local population in Chongqing and compare it with
representative equations. Methods:
This prospective study included data on pregnant women who gave
birth to a child at full term in our hospital from December 2016 to November
2019. Foetal ultrasound parameters included biparietal diameter (BPD), head
circumference (HC), abdominal circumference (AC), and femur
diaphysis length (FDL). The foetal weight compensation model
was established by using the second-order linear regression model, and then, the
foetal weight equation was established by utilizing the
multiple reverse elimination regression technique. Last,
the absolute error and relative error were used to compare the
accuracy of the equations established in this study with
representative equations. Results: Through the foetal weight compensation equation, the new
equation suitable for Chongqing foetuses was successfully established with the
variables of BPD, HC, AC, and FDL.
The following foetal weight
prediction equation was established in this study: Log