Research Article
Preoperative Hematocrit Concentration and the Risk of Stroke in Patients Undergoing Isolated Coronary-Artery Bypass Grafting
Table 1
Patients’ characteristics.
| | Parameter | No stroke
| Stroke
|
| | Preoperative hematocrit concentration, mean (SD) | 38.8 (5.1) | 36.3 (4.9) | | Age in years, mean (SD) | 65.9 (10.7) | 69.3 (9.2) | | Male, (%) | 1,673 (73.7) | 30 (69.8) | | White race, (%) | 1,866 (82.2) | 37 (86.0) | | Body mass index ≥ 30 kg/m2, (%) | 974 (42.9) | 15 (34.9) | | Diabetes, (%) | 831 (36.6) | 19 (44.2) | | Hypertension, (%) | 1,914 (84.3) | 39 (90.7) | | Congestive heart failure, (%) | 255 (11.2) | 8 (18.6) | | Peripheral vascular disease, (%) | 119 (5.2) | 2 (4.7) | | Currently on dialysis, (%) | 56 (2.5) | 4 (9.3) | | Current Smoker, (%) | 554 (24.2) | 15 (34.9) | Chronic obstructive pulmonary disease,
(%) | 237 (10.4) | 9 (20.9) | History of transient ischemic attack,
(%) | 138 (6.1) | 4 (9.3) | | History of stroke with neurologic deficit, (%) | 100 (4.4) | 4 (9.3) | | History of stroke without neurologic deficit, (%) | 91 (4.0) | 1 (2.3) | | Bleeding disorder, (%) | 366 (16.1) | 8 (18.6) | | Disseminated cancer, (%) | 3 (0.1) | 0 (0.0) | | Tumor involving central nervous system, (%) | 1 (0.0) | 0 (0.0) |
|
|
