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Table 2 Sensitivity and specificity of T-SPOT.TB

From: Role of interferon-gamma release assays in the diagnosis of pulmonary tuberculosis in patients with advanced HIV infection

  Overall
(N = 158)
AFB Smear-Positive
(N = 45)
AFB Smear-Negative
(N = 113)
p-value
% Sensitivity (95% CI) 73 (62-82) 78 (62-89) 67 (52-81) 0.27
% Specificity (95% CI) 54 (42-66) 50 (7-93) 54 (42-66) 0.87
  1. Abbreviations: AFB, acid-fast bacilli.