| | No surgery | Surgery | P |
| | BMI | 24.2 | 25.8 | 0.25 | | ASA | 2.01 | 2.24 | 0.16 | | Diabetes | 9.40% | 20.69% | 0.15 | | Jaundice | 13.20% | 1.70% | 0.74 | | Anemia | 67.90% | 62.90% | 0.66 | | Hyperleukocytosis | 79.50% | 71.40% | 0.42 | | Hypoalbuminemia | 97.70% | 96.30% | 0.72 | | Number | 1.33 | 1.31 | 0.78 | | Size | 7.04 | 7.54 | 0.56 | | Walls | 48.08% | 32.14% | 0.16 | | Gas-forming PLA | 1.80% | 21.40% | 0.006 | | Pleural effusion | 22.60% | 31.03% | 0.41 | | Septic shock | 3.70% | 24.10% | 0.008 |
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