Sensitivity of the QFT-GIT and TST, using different cut-off points, in the groups of PTB patients stratified by sputum smear microscopy status.

Footnotes: QFT-GIT: QuantiFERON-TB G In-tube; TST: tuberculin skin test; PTB: pulmonary tuberculosis; N1: number of subjects tested; IR: indeterminate results; NR: no return visit for a TST reading; N2: number of subjects with interpretable results; % Sensitivity: percentage of sensitivity, calculated with available QFT-GIT and TST results; 95% CI: Confidence interval.Sensitivity of the QFT-GIT and TST, using different cut-off points, in the groups of PTB patients stratified by sputum smear microscopy status.