Factor

Diagnostic performance of basal measurements in prediction of latency period within two days

AUC

SE

P

95% CI

Cut off

TLC

0.515

0.049

0.744

0.420 - 0.610

-

AFI

0.602

0.042

0.023*

0.520 - 0.685

-

Celvical length

0.740

0.040

<0.001*

0.661 - 0.820

≤25 mm

Posterior uterocervical angle

0.788

0.033

<0.001*

0.723 - 0.853

≥108.0˚

Anterior uterocervical angle

0.871

0.024

<0.001*

0.824 - 0.918

≥106.0˚