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Table 2 Means, standard deviation and range of weight difference, absolute weight difference, percent error and absolute percent error for weight estimates performed by midwives at a University Hospital in Beirut

From: Accuracy of clinical fetal weight estimation by Midwives

 

Mean (SD)

Range

Weight difference (gm)

−84.3 (353.7)

−1110–850

Absolute weight difference (gm)

280.4 (230.5)

0–1110

Percent error

−1.8 (10.7)

−28–30.9

Absolute percent error

8.5 (6.7)

0–30.9

  1. Weight difference is defined as estimated weight—Birth weight, Absolute weight difference is the absolute value of the weight difference. Percentage error is defined as (Estimated weight—Birth weight)*100/Birth Weight. Absolute percent error is the absolute value of the percent error