Table 2 Comparison of surgical outcomes according to the age
Variable | Total (n = 1876) | Age < 60 (n = 723) | 60 ≤ Age < 80 (n = 867) | Age ≥ 80 (n = 286) | P-value |
|---|---|---|---|---|---|
Operation time, mean minutes (SD) | 60.0 (27.0) | 58.9 (26.7) | 60.2 (25.6) | 62.1 (31.4) | 0.238 |
Estimated blood loss, mean mL (SD) | 24.2 (62.7) | 19.4 (51.6) | 26.6 (69.0) | 28.9 (67.6) | 0.028 |
Adjacent organ injury detected during surgery, n (%) | 22 (1.2) | 5 (0.7) | 11 (1.3) | 6 (2.1) | 0.163 |
  Bile duct | 8 (0.4) | 3 (0.4) | 3 (0.3) | 2 (0.7) |  |
  Duodenum | 2 (0.1) | 1 (0.1) | 1 (0.1) | 0 (0.0) |  |
  Colon | 2 (0.1) | 0 (0.0) | 1 (0.1) | 1 (0.3) |  |
  Hepatic artery | 6 (2.2) | 1 (0.1) | 3 (0.3) | 2 (0.7) |  |
  Small intestine | 4 (0.2) | 0 (0.0) | 3 (0.3) | 1 (0.3) |  |
Open conversion, n (%) | 16 (0.9) | 1 (0.1) | 9 (1.0) | 6 (2.1) | 0.007 |
Subtotal cholecystectomy, n (%) | 10 (0.5) | 4 (0.6) | 4 (0.5) | 2 (0.7) | 0.888 |
Overall complication, n (%) | 162 (8.6) | 29 (4.0) | 79 (9.1) | 54 (18.9) | < 0.001 |
Serious complication (≥ C-D classification III), n (%) | 68 (3.6) | 9 (1.2) | 36 (4.2) | 23 (8.0) | < 0.001 |
90-day mortality, n (%) | 7 (0.4) | 0 (0.0) | 1 (0.1) | 6 (2.1) | < 0.001 |
Postoperative hospital stay, mean days (SD) | 4.26 (25.88) | 2.78 (2.02) | 3.72 (5.17) | 5.87 (9.22) | < 0.001 |
Total hospital stay, mean days (SD) | 9.84 (26.36) | 6.95 (3.76) | 9.87 (6.64) | 13.19 (10.69) | < 0.001 |
Surgical site infection, n (%) | 65 (3.5) | 11 (1.5) | 36 (4.2) | 18 (6.3) | < 0.001 |
Bile leakage, n (%) | 12 (0.6) | 2 (0.3) | 7 (0.8) | 3 (1.0) | 0.268 |
Pulmonary complication, n (%) | 45 (2.4) | 4 (0.6) | 22 (2.5) | 19 (6.6) | < 0.001 |
Re-operation, n (%) | 10 (0.5) | 2 (0.3) | 5 (0.6) | 3 (1.0) | 0.307 |
Re-admission, n (%) | 14 (0.7) | 2 (0.3) | 7 (0.8) | 5 (1.7) | 0.048 |
Incisional hernia, n (%) | 8 (0.4) | 0 (0.0) | 6 (0.7) | 2 (0.7) | 0.081 |
Incidental gallbladder cancer, n (%) | 24 (1.3) | 2 (0.3) | 13 (1.5) | 9 (3.1) | 0.001 |