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Table 2 Performance of QuantiFERON test in inpatients with pulmonary infiltrates and outpatients with pulmonary tuberculosis

From: Performance of whole-blood interferon-gamma release assay in patients admitted to the emergency department with pulmonary infiltrates

QuantiFERON† Inpatients p value Outpatients p value
  Total
(n = 284)
* Non-TB
(n = 196)
TB
(n = 88)
  TB
(n = 93)
 
Indeterminate 84 (29.6) 69 (35.2) 15 (17.0) 0.002a 1 (1.1) <0.001b
Determinate 200 (70.4) 127 (64.8) 73 (83.0)   92 (98.9) <0.001c
   Positive 77 (27.1) 26 (13.3) 51 (58.0)   77 (82.8)  
   Negative 123 (43.3) 101 (51.5) 22 (25.0)   15 (16.1)  
  1. Data are shown as mean ± SD or No. (%). TB, tuberculosis.
  2. QuantiFERON test was performed by using QuantiFERON®- TB Gold or QuantiFERON ®-TB Gold In-Tube.
  3. * Patients with pneumonia (n = 178), organizing pneumonia (n = 7), nontuberculous mycobacterial lung disease (n = 5), aspergillosis (n = 4), and lung cancer (n = 2).
  4. aComparison of proportion of indeterminate vs. determinate results between in patients with non-TB and TB.
  5. bComparison of proportion of indeterminate vs. determinate results between inpatients and out patients with TB.
  6. cComparison of positive QuantiFERON test results between inpatients and outpatients with TB.