Fig. 2From: A retrospective study on Xpert MTB/RIF for detection of tuberculosis in a teaching hospital in ChinaReceiver operating curves (ROC) for Xpert MTB/RIF, Acid-fast bacilli (AFB) smear microscopy and Interferon-gamma release assay (IGRA) to differentiate tuberculosis (TB) infection and non-TB infection cases. AUROC, area under the ROCBack to article page