Fig. 3From: 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 0 to day 4 to MTX therapy for ectopic pregnancy. The area under ROC curve was 0.863 (95% CI: 0.805–0.920)Back to article page