Uterine Radial Artery Resistance Index Predicts Reproductive Outcome in Women with Recurrent Pregnancy Losses and Thrombophilia

Table 3

Accuracy of uterine radial artery resistance index (URa-RI) at 8-week gestation for estimating the risk of miscarriage development.

Variable	URa-RI at 8 weeks gestation
Cut-off value	0.45
Area under ROC curve	85.29%
Sensitivity,%	83.33%
Specificity,%	87.78%
Positive predictive value,%	47.62%
Negative predictive value,%	97.53%
Positive likelihood ratio	6.82
Negative likelihood ratio	0.19

ROC, receiver operating characteristic.
Bootstrap resampling times= 2000.