| | Complication | Transfusion | No transfusion | value | | (%) | (%) |
| | Combined major complications | 19,127 (19.06) | 48,214 (11.22) | <0.001 | | Major cardiac complications | 8,721 (8.69) | 25,785 (6) | <0.001 | | Acute myocardial infarction | 719 (0.72) | 675 (0.16) | <0.001 | | Cardiac (Non-MI) | 8,441 (8.41) | 25,516 (5.94) | <0.001 | | Major pulmonary complications | 3,274 (3.26) | 5,803 (1.35) | <0.001 | | Pulmonary embolism | 733 (0.73) | 1,442 (0.34) | <0.001 | | Pulmonary complications | 1,368 (1.36) | 2,143 (0.5) | <0.001 | | Pneumonia | 1,706 (1.7) | 2,872 (0.67) | <0.001 | | Deep venous thrombosis | 958 (0.95) | 1,973 (0.46) | <0.001 | | Cerebrovascular event | 222 (0.22) | 384 (0.09) | <0.001 | | All infections | 7,063 (7.04) | 14,574 (3.39) | <0.001 | | Acute renal failure | 3,488 (3.48) | 4,498 (1.05) | <0.001 | | Gastrointestinal complication | 1,168 (1.16) | 2,910 (0.68) | <0.001 | | Mortality (30 day) | 288 (0.29) | 513 (0.12) | <0.001 | | Mechanical ventilation | 1,213 (1.21) | 2,592 (0.6) | <0.001 | | Critical care services admission | 4,975 (4.96) | 12,385 (2.88) | <0.001 |
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