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Table 4 Associations between discordances of fetal growth parameters in the third-trimester with growth discordance by using multivariate logistic regression modela

From: Predictive value of prenatal ultrasound parameters for dichorionic growth discordant twins

Parameter

Early third-trimester

Late third-trimester

B

S.E.

Wald

P

OR

95%CI

B

S.E.

Wald

P

OR

95% CI

BPD

0.20

0.07

7.82

0.005

1.23

1.06–1.39

0.16

0.05

8.58

0.003

1.17

1.05–1.30

HC

0.28

0.10

7.92

0.005

1.32

1.09–1.61

0.17

0.07

6.66

0.010

1.19

1.04–1.35

AC

0.21

0.05

15.48

< 0.001

1.23

1.11–1.36

0.18

0.04

21.55

< 0.001

1.20

1.11–1.29

FL

0.27

0.06

17.84

< 0.001

1.31

1.16–1.49

0.32

0.05

34.79

< 0.001

1.38

1.24–1.53

EFW

0.16

0.04

19.81

< 0.001

1.17

1.09–1.26

0.16

0.03

38.23

< 0.001

1.17

1.11–1.23

  1. aBPD biparietal diameter; HC head circumference; AC abdominal circumference; FL femur length; EFW estimated fetal weight; OR odds ratio; CI confidence interval
  2. Note: relative risk is more suitable when prevalence of an outcome is more than 10%, despite common application and acceptance of OR