ADA and tuberculosis: The sensitivity and NPV of Xpert were lower than those of T-SPOT.TB, T-SPOT.TB (≥ 48.5 SFCs/106 PEMC), and ADA (≥ 30 U/L) (P < 0.05), while the specificity of Xpert was higher than that of T-SPOT.TB and ADA (≥ 30 U/L) (P < 0.05), and the PPV of Xpert was higher than that of ADA (≥ 30 U/L) (P < 0.05).