Correlation of Clinically & Sonographically estimated Fetal Birth Weight with Actual Birth Weight in Cephalic Presentation

Abstract

Introduction : Knowledge of the weight of the fetus in utero is important for obstetrician to decide whether to deliver
or not to deliver the fetus. And also to decide the mode of delivery. Accurate estimation of fetal weight is of
paramount importance in the management of labor and delivery. High rate of perinatal mortality in developing
countries makes estimation of fetal weight (EFW) antenatally pivotal to obstetricians. Objective : EBW was
estimated by clinical method using Johnson’s formula, Dare’s formula & by USG with Hadlock’s formula. All EBW
derived from these 3 methods were compared with the actual birth weight, to find out EBW by which formula has
closest resemblance with actual birth weight. Results : In this analysis using paired t-test, the reissignificant
statistical difference found between actual birth weight & Johnson’s method ( p-value < .00001) and between actual
birth weight & Hadlock’s method ( p-value < .00001). There is no statistically significant difference found between
actual birth weight & Dare’s method ( p-value0.32725) Conclusion : The assessment of fetal weight using Dare’s
formula is more accurate for predicting birth weight at term which is easy and cost-effective, amongst all 3 methods.