Table 1 Characteristics of 659 coronary artery bypass graft surgery patients, according to antiplatelet drug prescription before surgery
Characteristic | None (n = 497) | Aspirin (n = 105) | Clopidogrel (n = 11) | Aspirin plus clopidogrel (n = 46) | Statistical comparison between groups |
|---|---|---|---|---|---|
Mean (SD) age, years | 64.9 (10.1) | 66.7 (8.8) | 67.6 (6.3) | 65.8 (12.2) | P = 0.1 |
Number (%) females | 105 (21.1) | 34 (32.7) | 6 (54.6) | 14 (30.4) | P = 0.004 |
Mean (SD) preoperative hemoglobin concentration, g/L | 116.3 (17.4) | 115.5 (19.0) | 107.0 (21.6) | 111.7 (17.4) | P = 0.3 |
Number (%) who received any quantity of autologous whole blood during or after surgery | 31 (6.2) | 0 (0.0) | 0 (0.0) | 0 (0.0) | P = 0.01 |