Fig. 4From: Predictors and clinical features of methotrexate (MTX) therapy for ectopic pregnancyThe ROC curves used to evaluate the predictive efficiencies of the change in the level from day 4 to day 7 to MTX therapy for ectopic pregnancy. The area under ROC curve was 0.767 (95% CI: 0.685–0.877)Back to article page