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Table 2 Prevalence of a Positive Diagnostic Test for Latent Tuberculosis Infection

From: Poor concordance between interferon-γ release assays and tuberculin skin tests in diagnosis of latent tuberculosis infection among HIV-infected individuals

Diagnostic test

Positive test result (Percentage Positive)

TST

7 (2.5%)

QFT-3G

9 (2.7%)

TSPOT

14 (4.2%)

At least 1 positive test

27 (8.0%)

All 3 tests positive

1 (0.3%)

  1. TST = Tuberculin Skin Test
  2. QFT-3G = QuantiFERON-TB Gold in Tube
  3. TSPOT = T-SPOT. TB