| | Comorbidity | Transfusion | No transfusion | value | | (%) | (%) |
| | Myocardial infarction | 4,267 (4.25) | 15,235 (3.55) | <0.001 | | Peripheral vascular disease | 2,446 (2.44) | 6,798 (1.58) | <0.001 | | Cerebrovascular disease | 392 (0.39) | 842 (0.2) | <0.001 | | Dementia | 176 (0.18) | 326 (0.08) | <0.001 | | COPD | 15,420 (15.37) | 60,447 (14.07) | <0.001 | | Rheumatic disease | 5,312 (5.29) | 15,411 (3.59) | <0.001 | | Mild liver disease | 479 (0.48) | 858 (0.20) | <0.001 | | Severe liver disease | 135 (0.13) | 127 (0.03) | <0.001 | | Diabetes | 18,734 (18.67) | 73,690 (17.15) | <0.001 | | Complicated diabetes | 1,561 (1.56) | 4,157 (0.97) | <0.001 | | Renal disease | 92 (0.09) | 174 (0.04) | <0.001 | | Cancer | 2,636 (2.63) | 6,702 (1.56) | <0.001 | | Hypertension | 61,924 (61.71) | 262,215 (61.02) | <0.001 | | Complicated hypertension | 6,753 (6.73) | 13,587 (3.16) | <0.001 | | Pulmonary hypertension | 1,104 (1.10) | 2,137 (0.50) | <0.001 | | Deficiency anemia | 35,186 (35.06) | 81,132 (18.88) | <0.001 | | Pulmonary circulation disorder | 3,067 (3.06) | 7,103 (1.65) | <0.001 | | Fluid and electrolyte disorders | 20,553 (20.48) | 48,526 (11.29) | <0.001 | | Psychoses | 3,130 (3.12) | 9,583 (2.23) | <0.001 | | Sleep apnea | 6,394 (6.37) | 37,852 (8.81) | <0.001 | | Obesity | 15,545 (15.49) | 78,807 (18.34) | <0.001 |
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