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Table 4 Clinical findings of the participants with indeterminate QFT-IT results.

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

Patient No. QFT-IT result Age BCG scar WBC (cells/uL) Lymphocyte count (cells/uL) Serum total Protein (mg/dL) Serum albumin (mg/dL) TST (mm) AFB Smear/Culture in sputum examination Radiologic finding Diagnosis
1 Indeterminate 22 Yes 10,390 1,039 6.4 3.3 0 -/- Multifocal consolidations Pneumonia
2 Indeterminate 21 Yes 28,180 366 5.9 3.2 0 -/- LLL consolidation Pneumonia
3 Indeterminate 20 Yes 7,110 683 5.3 2.8 0 -/- Multifocal consolidations Pneumonia
4 Indeterminate 23 Yes 10,620 1,296 7.6 4.2 0 -/- RML, RLL consolidations Empyema
5 Indeterminate 20 Yes 9,460 1,296 8.1 4.2 0 -/- RLL consolidation Pneumonia
  1. QFT-IT, QuantiFERON® TB Gold In-Tube assay; BCG, Bacille Calmette-Guerin; WBC, white blood cells; TST, tuberculin skin test; AFB, acid-fast bacilli; RML, right middle lobe; LUL, left upper lobe; LLL, left lower lobe; RLL, right lower lobe.