Accuracy of Fetal Weight Estimation by Ultrasonographic Evaluation in a Northeastern Region of India

Table 4

Accuracy of the different formulas for estimating EFW by the ultrasonic method.

ABW categories		MAE, g (Hadlock’s)	MAE, g (Shepard’s)	MAPE, % (Hadlock’s)	MAPE, % (Shepard’s)
≤2500 g	N = 26	106.42 ± 88.11	65.04 ± 61.02	4.59 ± 3.89	2.80 ± 2.77
2501–3500 g	N = 72	76.39 ± 71.52	84.53 ± 65.85	2.64 ± 2.38	2.96 ± 2.25
>3500 g	N = 2	96.00 ± 72.12	104.50 ± 77.07	2.30 ± 1.70	2.50 ± 1.81
Total	N = 100	84.59 ± 76.54	79.86 ± 64.78	3.14 ± 2.94	2.91 ± 2.36
		value for the paired t-test = 0.54		value for the paired t-test = 0.45

ABW, actual birth weight; N, total sample size; MAE, mean absolute error; MAPE, mean absolute percentage error.