Table 3 Comparison of postoperative variables
Variables | Total (n = 830) | Survivors (n = 733) | Non-survivors (n = 97) | P valuea |
|---|---|---|---|---|
Drainage volume 24 h after surgery (ml) | 747.9 ± 672.3 | 708.4 ± 601.2 | 1170.9 ± 1115.1 | < 0.001 |
Post-operative transfusion volume (ml) | 582.6 ± 510.4 | 531.7 ± 484.9 | 922.5 ± 871.0 | < 0.001 |
Re-exploration for bleeding (%) | 32 (3.9) | 28 (3.8) | 4 (4.1) | 0.782 |
Dialysis (%) | 144 (17.3) | 87 (11.9) | 57 (58.8) | < 0.001 |
AKI (%) | 445 (53.6) | 370 (50.5) | 75 (77.3) | < 0.001 |
Ventilation time (hour) | 17.0 (11.5, 43.0) | 16.5 (11.2, 42.0) | 34.0 (20.1, 117.8) | < 0.001 |
Stroke (%) | 74 (8.9) | 60 (8.2) | 14 (14.4) | 0.042 |
Paraplegia (%) | 29 (3.5) | 26 (3.5) | 3 (3.1) | 1.000 |
Tracheostomy (%) | 39 (4.7) | 30 (4.1) | 9 (9.3) | 0.037 |
Deep sternal wound infection (%) | 14 (1.7) | 9 (1.2) | 5 (5.2) | 0.017 |
ICU stay time (day) | 7.1 ± 10.8 | 7.0 ± 11.2 | 7.5 ± 6.1 | 0.507 |
Hospital stay time (day) | 21.8 ± 12.2 | 23.3 ± 11.8 | 10.1 ± 8.3 | < 0.001 |