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Comparison of postoperative complications, n
| Complication | Single-layer anastomosis group | Double-layer anastomosis group | χ2 | P-value |
| Pancreatic fistula | Yes: 13 | Yes: 35 | 19.0463 | 0.0000 |
| No: 38 | No: 16 | |||
| Peritoneal catheterization | Yes: 0 | Yes: 6 | 4.4271 | 0.0354 |
| No: 51 | No: 45 | |||
| Abdominal infection | Yes: 1 | Yes: 11 | 9.4444 | 0.0021 |
| No: 50 | No: 40 | |||
| Total complications | Yes: 21 | Yes: 37 | 10.2320 | 0.0014 |
| No: 30 | No: 14 |
