Variables PPCABG (n=492) NVCABG (n=1866) P-values
Male gender 366(74.4%) 1398(74.9%) ns
Age (years) 58.6(±9.4) 56.7(±10.7) ns
Height 163.6(±20) 161.2(±15.7) ns
Weight 84(±21.3) 76(±15.4) ns
Body surface area 1.83 (± 2.3) 1.81(±2.0) ns
Urgent Presentation 156(31.7%) 126(6.8%) <0.05*
Recent MI 270(54.91%) 1302(69.8%) ns
Diabetes 402(81.7%) 1344(72.0%) ns
Hypertension 408(82.9%) 1332(71.4%) ns
Smoking 246(50.0%) 1044(55.9%) ns
Positive family history 120(24.4%) 480(25.7%) ns
Dyslipidemia 438(89.0%) 1350(72.3%) ns
Clopidogril use 348(70.7%) 0(0%) <0.05*
Statin use 460(93.5%) 618(33.2%) <0.05*
NYHA class
No SOB 78(15.9%) 12(0.6%) <0.05*
I 120(24.4%) 834(44.7%)  
II 192(39%) 576(30.9%)  
III 84(17%) 354(19%)  
IV 18(3.7%) 90(4.8%) ns
EF 45.2(10.6±) 47.1(9.3±) ns
Diastolic dysfunction
NO 108(22%) 546(29.3%) ns
Mild 90(18.3%) 228(12.2%)  
Moderate 246(50%) 286(46%)  
Severe 68(13.82%) 234(12.5%)  
More than two vessels 460(93.5%) 1698(91%) ns
LM Disease 108(21.2%) 300(16.1%) ns
Table 1: Demographic and preoperative characteristics in the two groups.