Abstract

The study compares the accuracy of clinical and ultrasonographic estimation of foetal weight at term in predicting birth weight. It was a prospective comparative study conducted in a tertiary hospital in Abuja, Nigeria between May and August 2018. Three hundred pregnant women planned for delivery were recruited. In-utero clinical estimation of foetal weight was carried out using Dare's clinical method and sonographic estimation using Hadlock 3 formula. The newborn babies were weighed within 30 minutes of delivery. The difference in the accuracy of the clinical method (75.3%) and the ultrasonographic method (82.3%) was statistically significant (p-value=0.023). The accuracy of the clinical method among parturients whose BMI were <30kg/m2 and ≥30.0kg/m2 were 83.5% and 68.5% respectively while that of the ultrasonographic method were 85.2% and 80% respectively. We conclude that ultrasonographic estimation of foetal weight is more accurate than the clinical method. However clinical method may be used when an ultrasound scan is not accessible.

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