Skip to main content

Table 3 Comparison the diagnostic values between T-SPOT.TB and TST and their combinations

From: Diagnostic value of the interferon-γ release assay for tuberculosis infection in patients with Behçet’s disease

  Sensitivity (%, 95CI) Specificity (%, 95CI) Positive predictive value (%, 95CI) Negative predictive value (%, 95CI) Positive likelihood ratio (95%CI) Negative likelihood ratio (95%CI)
T-SPOT.TB 92.9 (64.2–99.6) 67.3 (52.3–79.6) 44.8 (27–64) 97 (82.5–99.8) 2.84 (1.85–4.36) 0.11 (0.0160.71)
TST 78.6 (48.8–94.3) 65.3 (50.2–77.9) 39.2 (22.1–59.3) 91.4 (75.8–97.8) 2.26 (1.41–3.63) 0.32 (0.12–0.91)
TSPOT.TB and TST (parallel) 92.9 (64.2–99.6) 48.9 (34.6–63.5) 34.2 (20.1–51.4) 96 (77.7–99.8) 1.82 (1.33–2.48) 0.15 (0.02–1.01)
TSPOT.TB and TST (serial) 78.5 (48.8–94.3) 83.7 (69.8–92.2) 57.8 (34–78.9) 93.2 (80.3–98.2) 4.81 (2.41–9.6) 0.26 (0.09–0.70)
  1. TST tuberculin skin test