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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