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Table 2 The comparison of the IGRA and chest radiographic findings in biologic naïve and biologic-treated rheumatic patients

From: Chest roentgenography is complementary to interferon-gamma release assay in latent tuberculosis infection screening of rheumatic patients

  Biologic naïve
N = 31
Biologic user
N = 207
p
Age 57.5 ± 16.1 52.8 ± 14.6 0.10 a
Sex (M:F) 10/21 63/144 0.84 b
RA/AS/PsA 28/2/1 155/32/20 0.16 b
IGRA findings (Pos/Neg/IND) 10/19/2 36/159/12 0.14 b
CXR-old-TB n (%) 4 (12.9) 39 (18.8) 0.42 b
  1. a Student’s t test. b Chi-square test
  2. RA rheumatoid arthritis, AS ankylosing spondylitis, PsA psoriatic arthritis, IGRA interferon gamma release assay, Pos positive, Neg negative, IND indeterminate