| ALP | Alkaline Phosphatase |
| ALT | Alanine Transaminase |
| AMAT | Anti-Mycobacterial Antibiotic Therapy |
| AST | Aspartate Aminotransferase |
| CD | Crohn’s Disease |
| CDI | Clostridioides Difficile Infection |
| CRP | C-Reactive Protein |
| EEN | Exclusive Enteral Nutrition |
| ESR | Erythrocyte Sedimentation Rate |
| 5-ASA | 5-Aminosalicylic Acid |
| FMT | Fecal Microbiota Transplantation |
| Hb | Haemoglobin |
| IBD | Inflammatory Bowel Disease |
| MAP | Mycobacterium avium subspecies paratuberculosis |
| MTB | Mycobacterium tuberculosis complex |
| RCT | Randomised Controlled Trial |
| SES-CD | Simple Endoscopic Score for Crohn’s Disease |
| TNF | Tumor Necrosis Factor |
| WCC | White Cell Count |
| wPCDAI | Weighted Paediatric Crohn’s Disease Activity Index |