Retrospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Mar 21, 2015; 21(11): 3308-3316
Published online Mar 21, 2015. doi: 10.3748/wjg.v21.i11.3308
Table 2 Screening outcomes for latent tuberculosis infection before anti-TNF agent
n = 376, n (%)
Chest X-ray
Done356 (94.7)
Old tuberculosis8/356 (2.2)
Negative348/356 (97.8)
IGRA
Unknown9 (2.4)
Done276 (73.4)
Positive16/276 (5.8)
Negative241/276 (87.3)
Indeterminate19/276 (6.9)
Steroid or thiopurine at IGRA214/276 (77.5)
QuantiFERON247 (62.9)
Positive14/247 (5.7)
Negative218/247 (88.3)
Indeterminate15/247 (6)
T-SPOT29 (12.6)
Positive2/29 (6.9)
Negative23/29 (79.3)
Indeterminate4/29 (13.8)
TST
Unknown10 (2.7)
Done131 (34.8)
Positive12/131 (9.2)
Negative117/131 (89.3)
Steroid or thiopurine at TST104/131 (79.4)
Screening tests for LTBI
1 test (IGRA or TST)211 (56.1)
2 tests (IGRA and TST)98 (26.1)
Neither IGRA or TST59 (15.7)
Latent tuberculosis infection30 (8.0)