Furthermore, univariate analysis revealed that a disease duration greater than 1 year (OR, 0.22, 95% CI 0.06–0.74), IBD-type (UC) (OR, 0.13, 95% CI 0.02–0.59), and concomitant corticosteroid therapy (OR, 0.21, 95% CI 0.06–0.69) were significant factors for steroid-free remission after 52 weeks of anti-TNF treatment (Table 3). This evidence concerns the gene TNF and inflammatory bowel disease.