Table 3.
Variables | Unmatched (n = 2046) | Propensity score matched (n = 862) | |||||
---|---|---|---|---|---|---|---|
POD2ALB ≤3.0 g/dL (n = 1527) | POD2ALB >3.0 g/dL (n = 519) | Standardized difference | POD2ALB ≤3.0 g/dL (n = 431) | POD2ALB >3.0 g/dL (n = 431) | P-value | Standardized difference | |
Preoperative variables | |||||||
Age (years) | 28.3 ± 8.2 | 26.3 ± 7.2 | 0.285 | 25.9 ± 7.1 | 26.5 ± 7.3 | 0.232 | 0.079 |
Sex, male | 956 (62.6) | 456 (87.9) | 0.773 | 374 (86.8) | 369 (85.6) | 0.596 | 0.036 |
BMI (kg/m2) | 22.8 ± 2.8 | 23.1 ± 2.6 | 0.110 | 22.9 ± 2.7 | 22.9 ± 2.6 | 0.959 | 0.004 |
Haemoglobin (g/dL) | 14.0 ± 1.7 | 14.7 ± 1.4 | 0.522 | 14.7 ± 1.5 | 14.6 ± 1.4 | 0.546 | 0.043 |
Platelet count (×109/L) | 240.4 ± 44.4 | 238.5 ± 45.4 | 0.041 | 239.4 ± 42.6 | 238.3 ± 44.7 | 0.703 | 0.025 |
PT (INR) | 1.00 ± 0.07 | 1.01 ± 0.06 | 0.069 | 1.01 ± 0.06 | 1.01 ± 0.06 | 0.856 | 0.012 |
Creatinine (mg/dL) | 0.8 ± 0.2 | 0.9 ± 0.1 | 0.383 | 0.9 ± 0.1 | 0.9 ± 0.2 | 0.974 | 0.002 |
Albumin (g/dL) | 4.2 ± 0.3 | 4.4 ± 0.3 | 0.587 | 4.4 ± 0.3 | 4.4 ± 0.3 | 0.461 | 0.043 |
Total bilirubin (mg/dL) | 0.9 ± 0.3 | 0.9 ± 0.3 | 0.155 | 0.9 ± 0.3 | 0.9 ± 0.3 | 0.485 | 0.045 |
AST (IU/L) | 20.1 ± 6.7 | 20.2 ± 8.3 | 0.001 | 20.3 ± 4.8 | 20.0 ± 8.8 | 0.010 | 0.031 |
ALT (IU/L) | 17.6 ± 9.0 | 18.6 ± 11.2 | 0.089 | 18.6 ± 8.8 | 18.2 ± 11.6 | 0.040 | 0.035 |
Intraoperative variables | |||||||
Anaesthetic time (min) | 520.5 ± 98.2 | 465.7 ± 84.6 | 0.648 | 478.5 ± 89.4 | 474.9 ± 85.6 | 0.492 | 0.043 |
Right hepatectomy | 1389 (91.0) | 462 (89.0) | 0.062 | 386 (89.6) | 380 (88.2) | 0.502 | 0.045 |
Crystalloid (L) | 4.0 ± 1.2 | 3.2 ± 1.0 | 0.792 | 3.4 ± 1.0 | 3.4 ± 1.0 | 0.105 | 0.097 |
Synthetic colloid (mL) | 538.8 ± 205.6 | 466.7 ± 198.9 | 0.363 | 484.6 ± 197.1 | 486.5 ± 197.2 | 0.853 | 0.009 |
Urine output (mL) | 837.8 ± 456.1 | 720.3 ± 437.0 | 0.269 | 751.1 ± 411.6 | 733.9 ± 447.1 | 0.405 | 0.039 |
Diuretics use | 765 (50.1) | 211 (40.7) | 0.192 | 187 (43.4) | 178 (41.3) | 0.532 | 0.043 |
Ephedrine use | 279 (18.3) | 97 (18.7) | 0.011 | 88 (20.4) | 83 (19.3) | 0.678 | 0.030 |
Transfusion | 6 (0.4) | 1 (0.2) | 0.046 | 1 (0.2) | 1 (0.2) | 1.000 | <0.001 |
Values are expressed as mean ± standard deviation, or number of donors (%), as appropriate.
Abbreviations: POD2ALB, lowest albumin level within postoperative day 2; BMI, body mass index; PT, prothrombin time; INR, international normalized ratio; AST, aspartate aminotransferase; ALT, alanine transaminase.