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Table 2 Postoperative outcomes in the matched cohort

From: Impact of mild preoperative renal insufficiency on in-hospital and long-term outcomes after off-pump coronary artery bypass grafting: a retrospective propensity score matching analysis

  Normal group Mild group p value
In-hospital
 No. patients 618 618  
 Surgical mortality 15 (2.4 %) 20 (3.2 %) 0.4933
 Stroke 4 (0.6 %) 7 (1.1 %) 0.5470
 Myocardial infarction 19 (3.1 %) 24 (3.9 %) 0.5352
 Atrial fibrillation 116 (18.8 %) 123 (19.9 %) 0.6657
 IABP support 40 (6.5 %) 44 (7.1 %) 0.7348
 AKI requiring dialysis 2 (0.3 %) 8 (1.3 %) 0.1080
 Respiratory failure 14 (2.3 %) 22 (3.6 %) 0.2360
 Pneumonia 26 (4.2 %) 33 (5.3 %) 0.4237
 Redo for bleeding 7 (1.1 %) 9 (1.5 %) 0.8023
 RBC transfusion 151 (24.4 %) 168 (27.2 %) 0.2983
 DSWI 18 (2.9 %) 25 (4.1 %) 0.3518
Long-term
 No. patients 561 580  
 Mortality 24 (4.3 %) 43 (7.4 %) 0.0316
 CRF requiring dialysis 0 1 (0.2 %) 1.0000
  1. IABP intra-aortic balloon pump, AKI acute kidney injury, RBC red blood cell, DSWI deep sternal wound infection, CRF chronic renal failure