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Table 2 Clinical outcomes

From: Preoperative anemia increases mortality and postoperative morbidity after cardiac surgery

  Anemia group N = 1856 Control group N = 5882 p
Mortality, % (n) 76 (4.6) 88 (1.5) <0.0001
Atrial fibrillation, % (n) 682 (36.7) 1942 (33) 0.003
Renal dysfunction, % (n) 344 (18.5) 384 (6.5%) <0.0001
Stroke, % (n) 36 (1.9) 65 (1.1) 0.008
Myocardial infarction, % (n) 36 (1.9) 118 (2) 0.93
Length of hospital stay >7 days, % (n) 1002 (54) 2159 (36.7) <0.0001