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Table 6 Abnormal z scores using Intergrowth 21st or Salomon equations in the third trimester

From: Fetal biometry assessment with Intergrowth 21st’s and Salomon’s equations in rural Burkina Faso

Anthropometrics

Abnormal z scores n (%)

<  2.5th centile

< 10th centile

> 90th centile

>  97.5th centile

Biparietal diameter

 Intergrowth 21

6 (7.0)

23 (26.7)

0(0)

0(0)

 Salomon

2 (2.3)

10 (11.6)

0(0)

0(0)

Abdominal circumference

 Intergrowth 21

0(0)

0 (0)

17 (19.8)

5 (5.8)

 Salomon

0(0)

0 (0)

3 (3.5)

0(0)

Head circumference

 Intergrowth 21

0(0)

0 (0)

19 (22.1)

4 (4.7)

 Salomon

0(0)

0 (0)

18 (20.9)

1 (1.2)

Femur length

 Intergrowth 21

2 (2.3)

4 (4.7)

34 (39.5)

17 (19.8)

 Salomon

3 (3.5)

6 (7.0)

5 (5.8)

1 (1.2)