Sensitivity and specificity of the IGRAs in HIV-infected patients in four systematic reviews.

NOTE: Stratification for high-burden and low-burden TB settings is roughly equivalent to low-income and high-income settings used by Cattamanchi [10], Metcalfe [11] and Chen [12] in their systematic reviews; TB = tuberculosis; QFT-GIT = QuantiFERON Gold® In-Tube; N.D. = Not done.*Sensitivity estimated by scoring indeterminate results negative;†Only one study;‡Two studies: 89% each respectively.