| ADA | adalimumab |
| ATG16L1 | autophagy-related 16 like 1 |
| C11orf30 | EMSY transcriptional repressor, BRCA2 interacting |
| CASP9 | caspase 9 |
| CCNY | cyclin Y |
| CD | Crohn’s disease |
| CD14 | CD14 molecule |
| CDAI | Crohn’s Disease Activity Index |
| CDKAL1 | CDK5 regulatory subunit associated protein 1 like 1 |
| CI | confidence interval |
| CNTN5 | contactin 5 |
| CRP | C-reactive protein |
| CXCL12 | C-X-C motif chemokine ligand 12 |
| FAS-L | Fas ligand |
| FCGR3A | Fc gamma receptor IIIa |
| HAUS6 | HAUS augmin-like complex subunit 6 |
| HBI | Harvey–Bradshaw Index |
| HLA-DQA1*05 | major histocompatibility complex, class II, DQ alpha 1 |
| IBD | inflammatory bowel disease |
| IBDQ | Inflammatory Bowel Disease Questionnaire |
| IFNG | interferon gamma |
| IFX | infliximab |
| IL- | interleukin (1B, 6, 10, 12, 13, 17A, 18, 23 or 27) |
| IL1RN | interleukin 1 receptor antagonist |
| IRF1-AS1 (CARINH) | colitis-associated IRF1 antisense regulator of intestinal homeostasis |
| JAK2 | Janus kinase 2 |
| LY96 | lymphocyte antigen 96 |
| NFKBIA | NFKB inhibitor Alpha |
| NLRP3 | NLR family pyrin domain containing 3 |
| NR12 | greater CFTR locus negative regulatory element NR12 |
| OR | odds ratio |
| PHACTR3 | phosphatase and actin regulator 3 |
| PLIN2 | perilipin 2 |
| PTGER4 | prostaglandin E receptor 4 |
| PTPN2 | protein tyrosine phosphatase non-receptor type 2 |
| PUCAI | Pediatric Ulcerative Colitis Activity Index |
| SNP | single nucleotide polymorphism |
| Th17 | lymphocyte T helper 17 |
| TH2LCRR | T helper type 2 locus control region-associated RNA |
| TLR | toll-like receptor (2, 4 or 9) |
| TNF | tumor necrosis factor |
| TNFAIP3 | TNF alpha-induced protein 3 |
| TNFR | TNF receptor (type 1 or 2) |
| TNFRSF1 | TNF receptor superfamily member 1 (A or B) |
| TNFSF | TNF superfamily member (4 or 18) |
| UC | ulcerative colitis |
| UST | ustekinumab |
| wPCDAI | Weighted Pediatric Crohn’s Disease Activity Index |