Fig. 5

Summary receiver operating characteristic (SROC) curve of the diagnostic accuracy of EpCAM. The SROC curve showed comphensive consideration of diagnostic threshold based on sensitivity and specificity. Every hateched circle mean every single study’s predictive region of summary operating characteristic 95% CI. Area under curve (AUC) was an diagnostic accuracy index of which value between 0.8 and 1 represented relatively high for clinical consideration