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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.