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Results 181 patients (M:F 87:94; age range 11-83; average age 44.8 years) had received at least one dose anti-TNF and were included in this study (see Table) . The majority of patients had colitis (n = 143; 79%). 52 patients (28.7%) did not have a documented QFT or IGRA (interferon gamma release assay) result. LTBI was diagnosed in 8 (6.2%) with reactive QFT of whom 7 completed chemoprophylaxis and 1 was referred for further investigation and treatment elsewhere. 95 (73.6%) were QFTdoi:10.1136/thoraxjnl-2016-209333.257 fatcat:gc23zxd7frem7nekntuygsdf7i