Preoperative and postoperative laboratory parameters of patients
| Characteristic | Total (n=476) | Survival (n=440) | Non-survival (n=36) | P value |
| Preoperative biochemical parameters | ||||
| Creatinine (μmol/L) | 81.75 (60.45–124.98) | 81.10 (60.18–121.55) | 88.60 (67.45–164.15) | 0.127 |
| Total bilirubin (μmol/L) | 34.35 (19.20–61.28) | 34.70 (20.50–61.02) | 28.00 (12.25–119.07) | 0.329 |
| Albumin (g/L) | 33.88±6.85 | 34.21±6.79 | 29.85±6.30 | <0.001* |
| Preoperative blood routine | ||||
| Platelet (×109/L) | 154.50 (108.00–226.25) | 160.50 (109.00–230.25) | 121.50 (79.00–174.50) | 0.018* |
| Red blood cells (×1012/L) | 4.00 (3.27–4.65) | 4.06 (3.29–4.70) | 3.75 (3.24–4.00) | 0.015* |
| Haemoglobin (g/L) | 122.07±30.98 | 123.07±31.28 | 109.75±24.23 | 0.003* |
| White blood cells (×109/L) | 10.35 (6.26–16.35) | 10.38 (6.29–16.41) | 9.81 (5.81–15.21) | 0.299 |
| Neutrophils (×109/L) | 8.96 (4.74–13.83) | 9.08 (4.78–13.76) | 7.63 (4.48–13.96) | 0.342 |
| Lymphocytes (×109/L) | 0.80 (0.50–1.26) | 0.81 (0.50–1.26) | 0.57 (0.46–1.13) | 0.249 |
| Preoperative NLR | 10.30 (6.14–19.56) | 10.24 (6.01–19.57) | 10.95 (7.69–16.86) | 0.851 |
| Preoperative PLR | 201.92 (115.65–338.49) | 202.56 (115.77–339.67) | 191.93 (97.37–314.51) | 0.447 |
| Preoperative SII | 1727.73 (818.54–3194.81) | 1761.87 (819.61–3214.97) | 1354.89 (524.70–2478.64) | 0.165 |
| Postoperative biochemical parameters | ||||
| Creatinine (μmol/L) | 90.00 (60.15–108.50) | 88.75 (59.63–108.50) | 102.05 (74.93–135.82) | 0.087 |
| Total bilirubin (μmol/L) | 30.35 (15.67–46.80) | 30.30 (15.85–46.80) | 33.95 (12.57–57.38) | 0.937 |
| Postoperative blood routine | ||||
| Platelet (×109/L) | 147.00 (98.75–187.00) | 148.50 (102.75–191.00) | 112.00 (54.50–146.25) | 0.001* |
| Haemoglobin (g/L) | 106.00 (90.75–121.00) | 106.00 (91.00–122.25) | 94.50 (81.75–110.00) | 0.007* |
| White blood cells (×109/L) | 10.59 (6.90–14.54) | 10.59 (6.95–14.53) | 9.27 (4.38–14.54) | 0.364 |
| Neutrophils (×109/L) | 9.25 (6.10–13.11) | 9.25 (6.14–12.96) | 8.20 (4.05–13.42) | 0.380 |
| Lymphocytes (×109/L) | 0.66 (0.37–0.94) | 0.67 (0.38–0.95) | 0.55 (0.31–0.86) | 0.179 |
| Postoperative NLR | 12.65 (9.83–23.16) | 12.56 (10.03–22.79) | 15.13 (8.44–24.91) | 0.855 |
| Postoperative PLR | 214.35 (137.13–378.18) | 213.81 (139.13–371.80) | 246.10 (102.64–424.60) | 0.672 |
| Postoperative SII | 1829.81 (1071.74–3345.28) | 1829.81 (1143.82–3308.13) | 1714.60 (582.07–3470.17) | 0.147 |
Data presented as mean±SD or median (IQR).
*P<0.05.
NLR, neutrophil-to-lymphocyte ratio; PLR, platelet-to-lymphocyte ratio; SII, systemic immune-inflammation index.