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Table 1 Comparison of the preoperative data between patients with and without perioperative myocardial infarction

From: Predictors of perioperative myocardial infarction in patients undergoing off-pump coronary artery bypass grafting

  Non-PMI patients (n = 1122) PMI patients (n = 59) P
Age (years) 54 (48–60) 57 (51–63) 0.01
Male 959 (85.47%) 45 (76.27%) 0.05
BMI (kg/m2) 27.8 (24.8–30.9) 28.2 (24.2–33.2) 0.62
BSA (m2) 1.9 (1.8–2) 1.9 (1.8–2) 0.22
NYHA III-IV 326 (29.06%) 28 (47.46%) 0.01
CCS III-IV 463 (41.27%) 32 (54.24%) 0.049
Congestive heart failure 17 (1.52%) 5 (8.47%) ˂ 0.001
Previous myocardial infarction 334 (29.93%) 19 (32.79%) 0.65
Thrombolysis within 24 h 9 (0.81%) 2 (3.51%) 0.1
Previous PCI 112 (10.02%) 5 (8.77%) 0.76
Diabetes mellitus 461 (41.35%) 31 (52.54%) 0.09
Hypertension 606 (54.25%) 40 (67.80%) 0.04
Severe renal impairment/dialysis 26 (2.33%) 3 (5.08%) 0.18
COPD 24 (2.15%) 3 (5.08%) 0.15
Cerebrovascular disease 27 (2.42%) 1 (1.69%) ˃0.99
Peripheral vascular disease 13 (1.17%) 2 (3.45%) 0.17
Atrial fibrillation 4 (0.37%) 0 ˃0.99
Hemoglobin (mg/dl) 13.5 (12.4–14.3) 13.2 (12.4–14.2) 0.75
Creatinine (mg/dl) 1 (0.9–1.2) 1 (0.9–1.3) 0.55
Bilirubin (mg/dl) 0.6 (0.5–0.8) 0.6 (0.4–0.8) 0.26
Ejection fraction    0.11
 Good 846 (77.54%) 39 (67.24%)  
 Fair 234 (21.45%) 18 (31.03%)  
 Poor 11 (1.01%) 1 (1.72%)  
  1. Continuous variables were presented as mean and standard deviation if normally distributed and median (25th–75th percentiles) if not normally distributed. Categorical data were presented as frequencies and percentages
  2. BMI body mass index, BSA body surface area, CCS Canadian Cardiovascular Society, COPD chronic obstructive pulmonary disease, NYHA New York Heart Association, PCI percutaneous coronary interventions, PMI perioperative myocardial infarction