Fig. 1. Diagnostic value of the ichroma™ IGRA-TB test in identifying M. tb infection. The IFN-γ responses measured by ichroma™ IGRA-TB cartridges distinguished infected individuals with an AUC of 0.9706 (95% CI, 0.92–1.00, p<0.001) in ROC curve analysis (p<0.001). IGRA, IFN-γ release assay; TB, tuberculosis; CI, confidence interval; AUC, area under the curve; ROC, receiver operating characteristic.
