“…Overall, 22,714 patients were included in the 51 studies (54 discrete data sets) [ 21 , 22 , 23 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 ], 4417 patients were treated with an anti-TNF-α agent within 12 weeks prior to abdominal surgery (intervention group) and 18,297 patients did not receive anti-TNF-α treatment (control group). TNF-α inhibitors that were investigated included: Adalimumab, Certolizumab (pegol), Golimumab, Infliximab and/or its biosimilars [ 21 , 22 ,…”