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Table 1 Patient Characteristics

From: The efficacies of modified mechanical post conditioning on myocardial protection for patients undergoing coronary artery bypass grafting

   MMPOC (n, 39) Control (n, 40) P Value
Age (Yr) Mean ± SD 61.6 ± 8.1 62.4 ± 7.1 0.833
Median (Min-Max) 62 (45-73) 63 (48-77)  
NHYA Mean ± SD 1.87 ± 0.76 1.72 ± 0.67 0.431
Median (Min-Max) 2 (1-4) 2 (1-3)  
LVEF (%) Mean ± SD 47.6 ± 5.5 46.1 ± 5.7 0.185
Median (Min-Max) 48 (38-57) 44.5 (39-57)  
EuroSCORE Mean ± SD 3.05 ± 1.37 2.67 ± 1.42 0.193
Median (Min-Max) 3 (1-6) 2 (1-6)  
LMCA disease n (%) 3 (7.7) 2 (5.0) 0.675
History of Hypertension n (%) 15 (38.5) 17 (42.5) 0.715
Diabetes Mellitus n (%) 15 (38.5) 17 (42.5%) 0.715
Hb (g/dl) Mean ± SD 12.1 ± 0.46 12.3 ± 0.57 0.358
Median (Min-Max) 12.3 (10.6-13.1) 12.3 (11.8-14.5)  
Glucose (mg/dl) Mean ± SD 101.4 ± 14.8 98 ± 12.1 0.376
Median (Min-Max) 98 (75-131) 95 (75-125)  
Creatinine (mg/dl) Mean ± SD 1.13 ± 0.19 1.15 ± 0.15 0.484
Median (Min-Max) 1.1 (0.8-1.8) 1.2 (0.9-1.4)  
BUN (mg/dl) Mean ± SD 25.6 ± 4.9 26.5 ± 5.1 0.421
Median (Min-Max) 25 (14-36) 25 (20-34)  
Protein (mg/dl) Mean ± SD 6.60 ± 0.19 6.61 ± 0.22 0.841
Median (Min-Max) 6.6 (6.1-7.0) 6.7 (6.2-7.2)  
Albumin (mg/dl) Mean ± SD 3.50 ± 0.20 3.46 ± 0.13 0.277
Median (Min-Max) 3.5 (3.0-3.9) 3.4 (3.3-3.8)  
INR Mean ± SD 1.05 ± 0.07 1.03 ± 0.07 0.450
  Median (Min-Max) 1.02 (0.9-1.3) 1.02 (0.8-1.2)  
  1. SD = standard deviation, Min = minimum, Max: maximum, MMPOC = modified mechanical post-conditioning NYHA, New York Heart Association, LVEF = left ventricular ejection fraction, LMCA = left main coronary artery, Hb = hemoglobin, BUN: blood urea nitrogen, INR: international normalized ratio.
  2. Nominal variables were assessed by Chi square test or Fisher’s Exact test, where applicable. Continuous and ordinal variables were evaluated between two groups by Student’s t test and Mann–Whitney U test, respectively.