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Table 2 Accuracy of both weight estimations regarding effective birth weight in all normal weight pregnant women

From: Fetal weight estimation at term – ultrasound versus clinical examination with Leopold’s manoeuvres: a prospective blinded observational study

EFW

Leopold’s manoeuvres

Ultrasound

p value

Absolute error [g]

279 ± 225

257 ± 204

0.0696a

Absolute error > 500g [%]

17.2

12.9

0.0805b

Absolute % error [g]

8.6 ± 7.5

7.9 ± 6.5

0.051a

Absolute % error > 10% [%]

33.5

29.6

0.155b

Absolute % error > 20% [%]

7.1

6.9

1.0b

  1. aPaired T test, bExact McNemar test