TNF and colitis: The mean age of the participants was 41.4 ± 14.7 years; 34 (64.2%) participants were female; 25 (47.2%) had pan-colitis; 22 (41.5%) had left-sided colitis; 16 (30.2%) were on immunosuppressants; and 13 (24.5%) were on anti-TNF medications.