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Table 2 The results of TST and QFT-IT among active TB and non-TB disease.

From: The clinical utility of tuberculin skin test and interferon-γ release assay in the diagnosis of active tuberculosis among young adults: a prospective observational study

  TST (n = 142*) Total QFT-IT (n = 138) Total
  positive negative   positive negative  
TB 93 6 99 93 7 100
Non-TB 5 38 43 2 36 38
Total 98 44 142 95 43 138
  1. TB, tuberculosis; TST, tuberculin skin test; QFT-IT, QuantiFERON® TB Gold In-Tube assay
  2. *TST result was not available in one TB patient.
  3. QFT-IT results were indeterminate in five non-TB patients.