| CD | Crohn’s disease |
| ESGE | European Society of Gastrointestinal Endoscopy |
| ESPGHAN | European Society for Paediatric Gastroenterology, Hepatology and Nutrition |
| IBD | Inflammatory bowel disease |
| IgA | Immunoglobulin A |
| IQR | Interquartile range |
| LGIB | Lower gastrointestinal bleeding |
| NET | Neuroendocrine tumor |
| SD | Standard deviation |
| UC | Ulcerative colitis |