| PDAC | Pancreatic ductal adenocarcinoma |
| CA19-9 | Carbohydrate antigen 19-9 |
| FE-1 | Fecal elastase-1 |
| NCCN | National Comprehensive Cancer Network |
| OS | Overall survival |
| RFS | Recurrence-free survival |
| ELISA | Enzyme-linked immunosorbent assay |
| ROC | Receiver operating characteristic |
| AUC | Area under the curve |
| HR | Hazard ratio |