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Table 1 Baseline characteristics of the study population

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

Characteristics Inpatients Outpatients
  Total (n = 284 ) * Non- TB (n = 196) TB (n = 88) TB (n = 93)
Age, yr 63 ± 16.5 65 ± 14.5 59 ± 19.8 52 ± 19.5
Male 206 (72.5) 150 (76.5) 56 (63.6) 50 (53.8)
Body mass index 21.4 ± 3.50 21.7 ± 3.42 20.8 ± 3.61 21.7 ± 3.08
Prior TB history 57 (20.1) 39 (19.9) 18 (20.5) 16 (17.2)
Underlying conditions     
   Renal failure 11 (3.9) 9 (4.6) 2 (2.3) 0 (0)
   Malignancy† 4 (1.4) 2 (1.0) 2 (2.3) 3 (3.2)
   Immunosuppressive therapy‡ 11 (3.9) 7 (3.6) 4 (4.5) 0 (0)
  1. Data are shown as mean ± SD or No. (%). TB, tuberculosis.
  2. * Patients with pneumonia (n = 178), organizing pneumonia (n = 7), nontuberculous mycobacterial lung disease (n = 5), aspergillosis (n = 4), and lung cancer (n = 2).
  3. † Patients with a diagnosis of cancer who were not receiving anti-cancer treatment, including lung cancer (n = 2), hypopharyngeal cancer (n = 1), and gastric cancer (n = 1) for inpatients; hepatocellular carcinoma (n = 1), glottic cancer (n = 1), and gastric cancer (n = 1) for outpatients.
  4. ‡ Patients receiving cancer chemotherapy (n = 9 ) or systemic steroids (>10 mg/day of prednisone for ≥ 1 month) (n = 2).