Figure 4.

ROC analyses of ERAP2 secretion in IVF patients and fertile control. AUC, area under curve; p, probability value; T, threshold value; LR, likelihood ratio; IVF, in vitro fertilization; ROC, receiver operating characteristic. (A) ROC analysis of ERAP2 secretion into the plasma of pregnant patients and patients who miscarried after IVF-ET. IVF-ET, in vitro fertilization embryo transfer. (B) ROC analysis of ERAP2 secretion into the plasma of women who became pregnant naturally and gave birth to healthy child in the past and patients who miscarried after IVF-ET. (C) ROC analysis of ERAP2 secretion into the plasma of women who were pregnant from natural conception at the time of the test and patients who miscarried after IVF-ET.