Table 1.
Impact of underweight and obesity on postoperative complications and in-hospital mortality in patients undergoing esophagectomy for cancer compared with the control group (normal weight and overweight patients)
| Underweight | Control group | Obesity | p value | |
|---|---|---|---|---|
| BMI < 18.50 (N = 40) | BMI 18.50–29.99 (N = 458) | BMI ≥ 30.00 (N = 58) | ||
| Postoperative complications | 20 (50%) | 294 (64.2%) | 34 (58.6%) | 0.17 |
| Surgical complications | ||||
| Bleeding | 1 (2.5%) | 13 (2.8%) | 0 (0%) | 0.43 |
| Chyle leakage | 1 (2.5%) | 12 (12.6%) | 1 (1.7%) | 0.92 |
| Anastomotic leakage | 5 (12.5%) | 77 (16.8%) | 16 (27.6%) | 0.09 |
| Conduit necrosis | 0 (0.0%) | 11 (2.4%) | 1 (1.7%) | 0.59 |
| Vocal cord paresis | 4 (10.0%) | 67 (14.6%) | 4 (6.9%) | 0.16 |
| Wound infection | 1 (2.5%) | 43 (9.4%) | 7 (12.1%) | 0.25 |
| Medical complications | ||||
| Sepsis | 1 (2.5%) | 29 (6.3%) | 3 (5.2%) | 0.6 |
| Pneumonia | 11 (27.5%) | 149 (32.5%) | 12 (20.7%) | 0.16 |
| Respiratory insufficiency* | 5 (12.5%) | 40 (8.7%) | 6 (10.3%) | 0.69 |
| Atrial fibrillation | 3 (7.5%) | 39 (8.5%) | 3 (5.2%) | 0.67 |
| Myocardial infarction | 0 (0%) | 5 (1.1%) | 2 (3.4%) | 0.24 |
| Thromboembolism | 0 (0%) | 10 (2.2%) | 2 (3.4%) | 0.51 |
| Reoperation | 3 (7.5%) | 54 (11.8%) | 5 (8.6%) | 0.58 |
| In-hospital mortality | 1 (2.5%) | 27 (5.9%) | 5 (8.6%) | 0.45 |
BMI body mass index
* Respiratory insufficiency was defined as pulmonary dysfunction requiring prolonged ventilation (>10 days) or reintubation