Table 1.
Comparison of 25 variables between the groups with and without pulmonary complications
| Variables | Non-pulmonary complication group (n = 55) | Pulmonary complication group (n = 47) | P value |
| Age (yr) | 46.29 ± 9.14 | 44.06 ± 9.95 | 0.242 |
| Weight index (kg/m2) | 22.78 ± 3.35 | 22.36 ± 3.29 | 0.531 |
| Hb (g/L) | 122.79 ± 21.12 | 109.54 ± 25.25 | 0.005 |
| HCT (%) | 36.21 ± 6.42 | 32.53 ± 7.53 | 0.009 |
| CRE (mmol/L) | 83.75 ± 21.35 | 85.96 ± 23.88 | 0.623 |
| BUN (mmol/L) | 4.70 ± 1.92 | 5.22 ± 3.09 | 0.323 |
| UA (mmol/L) | 303.76 ± 113.27 | 272.43 ± 117.94 | 0.175 |
| ASA grade | 2.76 ± 0.61 | 3.0 ± 0.75 | 0.082 |
| Child-Pugh score | 7.29 ± 2.40 | 8.38 ± 2.88 | 0.039 |
| APACHE II score | 3.95 ± 2.47 | 4.79 ± 3.53 | 0.174 |
| MELD score | 14.22 ± 7.34 | 16.68 ± 9.39 | 0.140 |
| Warm ischemia time (min) | 5.80 ± 1.52 | 5.53 ± 1.63 | 0.392 |
| Cold ischemia time (min) | 710.13 ± 184.99 | 654.21 ± 208.25 | 0.154 |
| Anhepatic phase (min) | 123.04 ± 34.46 | 126.00 ± 47.00 | 0.715 |
| Operative time (min) | 423.22 ± 84.92 | 489.38 ± 150.00 | 0.009 |
| Diabetes (%) | 9.09 | 8.51 | 1.000 |
| Lung dysfunction (%) | 12.73 | 19.15 | 0.374 |
| Volume of intra-operative blood transfusion > 30 mL/kg (%) | 65.45 | 82.98 | 0.046 |
| Volume of intra-operative packed RBC transfusion > 0.05 U/kg (%) | 76.36 | 91.49 | 0.041 |
| Volume of intra-operative plasma transfusion > 25 mL/kg (%) | 43.64 | 63.83 | 0.042 |
| Volume of intra-operative fluid transfusion > 100 mL/kg (%) | 58.18 | 80.85 | 0.014 |
| Volume of intra-operative bleeding > 10 mL/kg (%) | 67.27 | 87.23 | 0.018 |
| Intra-operative fluid balance > 64 mL/kg (%) | 32.73 | 53.19 | 0.037 |
| a (%) | 21.82 | 4.26 | 0.010 |
| b (%) | 38.18 | 17.02 | 0.018 |
| c (%) | 25.45 | 6.38 | 0.010 |
| d (%) | 72.73 | 68.09 | 0.612 |
| e (%) | 36.36 | 14.89 | 0.014 |
Hb: Hemoglobin; HCT: Hematocrit; CRE: Creatinine; BUN: Blood urea nitrogen; UA: Serum uric acid; ASA: American Society of Anesthesiologists; APACHE: Acute physiology and chronic health evaluation; MELD: Model for end-stage liver disease. a, transfused volume on the first post-operative day ≤ 44 mL/kg; b, fluid balance on the first post-operative day ≤ -14 mL/kg; c, fluid balance ≤ -14 mL/kg on the first day and the second or the third day after operation; d, fluid balance ≤ -14 mL/kg on ≥ 1 d of the first 3 d after operation; e, fluid balance ≤ -14 mL/kg on ≥ 2 d after operation. ASA grade I was assigned a score of 1, grade II was assigned a score of 2, grade III was assigned a score of 3, and grade IV was assigned a score of 4. Mean ± SD was used for continuous variables, otherwise percentage was used (%).