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Table 1 Characteristics of the subjects according to collateral groups

From: The relation between endothelial dependent flow mediated dilation of the brachial artery and coronary collateral development – a cross sectional study

Variables Poor collateral
(n = 83)
Good collateral
(n = 88)
p value
Age (years) 61 ± 10 61 ± 11 0.738
Gender, males (%) 65 (78) 64 (73) 0.396
Diabetes mellitus (%) 46 (55) 27 (31) 0.001
Hypertension (%) 49 (59) 56 (64) 0.537
Current smokers (%) 41 (49) 39 (44) 0.506
Daily alcohol consumption (%) 3 (3.4) 3 (3.6) 1.0
BMI, kg/m2 28 ± 4 27 ± 4 0.292
Previous MI (%) 55 (66) 53 (60) 0.413
Previous CABG (%) 14 (17) 12 (14) 0.556
Total cholesterol, mg/dL 180 ± 40 179 ± 44 0.828
LDL-C, mg/dL 109 ± 34 107 ± 40 0.700
HDL-C, mg/dL 41 ± 10 39 ± 9 0.285
Triglycerides, mg/dL 152 ± 91 165 ± 80 0.168
Creatinine, mg/dL 1.1 ± 0.3 1.2 ± 0.9 0.607
LV ejection fraction, % 46 ± 13 49 ± 13 0.182
Number of vessels with significant stenosis (%)    0.995
1 vessel 27 (30.7) 25 (30.1)  
2 vessel 26 (29.5) 25 (30.1)  
3 vessel 35 (39.8) 33 (39.8)  
Lesion location (%)    0.154
Left anterior descending artery 64 (72.7) 66 (79.5)  
Circumflex artery 53 (60.2) 53 (63.9)  
Right coronary artery 67 (76.1) 55 (66.3)  
Cardiovascular medications (%)    
Aspirin 72 (87) 74 (84) 0.623
Beta-blockers 57 (69) 56 (64) 0.487
Calcium channel blockers 5 (6) 11 (13) 0.146
ACE-Is or ARBs 57 (69) 62 (71) 0.800
Nitrates 28 (34) 35 (40) 0.413
Statins 50 (60) 64 (73) 0.083
  1. ACE-I, angiotensin converting enzyme inhibitor; ARB, angiotensin receptor blocker; BMI, body mass index; CABG, coronary artery bypass grafting; HDL-C, high density lipoprotein cholesterol; LDL-C, low density lipoprotein cholesterol; LV, left ventricular; MI, myocardial infarction