| NLR | Neutrophil-to-Lymphocyte Ratio |
| PLR | Platelet-to-Lymphocyte Ratio |
| SII | Systemic Immune–Inflammation Index |
| LMR | Lymphocyte-to-Monocyte Ratio |
| OS | overall survival |
| DFS | disease-free survival |
| AL | anastomotic leaks |
| IAI | intra-abdominal infection |
| GPS | Glasgow Prognostic Score |
| CRP | C-reactive protein |
| NPS | Naples Prognostic Score, |
| CAR | C-reactive protein/albumin ratio |
| PNI | Prognostic Nutritional Index |
| CONUT | Controlling Nutritional Status Index |