Sabbagha et al reported equations for estimating the fetal weight of preterm and term pregnancies. The authors are from Northwestern University in Chicago.
Patient selection: preterm or term pregnancy, with ultrasonography performed within 7 days of delivery
Parameters:
(1) gestational age in weeks (GA)
(2) head circumference in cm (HC)
(3) abdominal circumference in cm (AC)
(4) femur length in cm (FL)
score =
= (GA) + (HC) + (2*(AC)) + (FL)
estimated fetal weight for an appropriate-for-gestational age fetus =
