Table 5 ROC curves of the parameters for predicting PE.

From: The prediction of pre-eclampsia by using high resolution flow ultrasonography in determination vascularization of placental villi in late pregnancy

Variables

AUC

95% CI

The best cut off value

Sensitivity (%)

Specificity (%)

the degree of placental villous branching

0.786

0.678–0.894

2.5

63.6

79.3

PI

0.778

0.659–0.898

0.625

90.9

62.1

RI

0.746

0.622–0.871

0.485

72.7

60.7

S/D

0.716

0.588–0.845

1.925

68.2

75.9

  1. ROC: receiver operating characteristic; PE: pre-eclampsia; AUC: area under the curve; CI: confdence interval; PI: pulsatility index; RI: resistance index; S/D: ratio of peak systolic flow velocity/end diastolic flow velocity.
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