Table 1.
Univariable analysis of preoperative and intraoperative data.
| Project | Survival group | Death group | t /χ2/z | P |
|---|---|---|---|---|
| (n = 36) | (n = 54) | |||
| Sex /male, n (%) | 24 (66.7) | 32 (62.2) | 0.504 | 0.478 |
| Age, years | 56.86 ± 11.30 | 58.48 ± 10.95 | 0.679 | 0.499 |
| Body weight, kg | 65.44 ± 13.53 | 62.36 ± 14.13 | 1.031 | 0.305 |
| Height, cm | 165.72 ± 9.07 | 163.86 ± 8.48 | 0.992 | 0.324 |
| BMI, kg/m2 | 23.69 ± 3.86 | 23.11 ± 4.43 | 0.647 | 0.519 |
| Hypertension, n (%) | 18 (50.0) | 25 (46.3) | 0.119 | 0.730 |
| Diabetes mellitus, n (%) | 0 | 6 (11.1) | – | – |
| History of cardiac surgery, n (%) | 5 (13.9) | 11 (20.4) | 0.621 | 0.431 |
| LVEF, % | 57.53 ± 9.02 | 55.02 ± 8.30 | 1.351 | 0.180 |
| HB, g/L | 136.56 ± 31.12 | 131.63 ± 19.65 | 0.921 | 0.360 |
| WBC, × 109/L | 8.89 ± 4.31 | 7.69 ± 4.43 | 1.283 | 0.203 |
| PLT, × 109/L | 179.28 ± 76.40 | 176.89 ± 65.04 | 0.159 | 0.874 |
| Albumin, g/L | 39.65 ± 5.06 | 40.84 ± 5.23 | 1.068 | 0.288 |
| TB, μmmol/L | 19.45 ± 13.15 | 21.90 ± 12.81 | 0.878 | 0.382 |
| ALT, U/L | 33.33 ± 29.79 | 29.26 ± 19.22 | 0.789 | 0.432 |
| AST, U/L | 35.58 ± 24.69 | 31.43 ± 18.16 | 0.920 | 0.360 |
| Urea nitrogen, μmmol/L | 6.84 ± 2.07 | 7.78 ± 6.21 | 0.870 | 0.387 |
| Creatinine, mmol/L | 76.30 ± 19.75 | 78.31 ± 25.50 | 0.400 | 0.690 |
| eGFR, ml/min | 97.28 ± 15.94 | 91.26 ± 18.29 | 1.602 | 0.113 |
| Operative time, h | 7.49 ± 2.19 | 7.02 ± 2.49 | 0.916 | 0.362 |
| Cardiopulmonary bypass time, min | 190.8 (143.0) | 160.8 (76.0) | 1.582 | 0.114 |
| Cross clamp time, min | 127.8 (102.0) | 124.2 (51.0) | 0.644 | 0.520 |
| Transfusion of red blood cells, U | 6.35 ± 4.883 | 5.07 ± 4.24 | 1.330 | 0.187 |
| Plasma transfused, ml | 759.72 ± 617.93 | 695.37 ± 635.08 | 0.476 | 0.635 |
| Intraoperative urine output, ml | 855.71 ± 623.93 | 936.23 ± 726.88 | 0.537 | 0.592 |
Values are mean ± SD, median (interquartile range), or percentages.
BMI, body mass index; LVEF, left ventricular ejection fraction; HB, hemoglobin; WBC, white blood cell; PLT, platelet; TB, total bilirubin; ALT, alanine transaminase; AST, glutamic oxalacetic transaminase; eGFR, glomerular filtration rate.