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Table 6 Diagnostic values of discordances of fetal growth parameters in the late third-trimester for growth discordancea

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

Parameter

Late third-trimester

AUC

P

95% CI

Youden index

Cut-off (%)

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

+LR

BPD

0.634

0.005

0.58–0.69

0.27

3.49

67.44

59.72

62.61

64.72

1.67

HC

0.617

0.048

0.54–0.69

0.23

5.81

38.71

84.72

71.70

58.02

2.53

AC

0.683

< 0.001

0.63–0.73

0.29

7.69

44.19

85.11

74.80

60.39

2.97

FL

0.751

< 0.001

0.70–0.80

0.43

5.97

51.16

91.84

86.24

65.28

6.27

EFW

0.759

< 0.001

0.71–0.80

0.43

14.37

69.77

73.50

72.47

70.86

2.63

  1. aBPD biparietal diameter; HC head circumference; AC abdominal circumference; FL femur length; EFW estimated fetal weight; AUC area under the curve; CI confidence interval; PPV positive predictive value; NPV negative predictive value; +LR positive likelihood ratio
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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