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Table 1 Patient demographics

From: Obesity and statins are both independent predictors of enhanced coronary arteriolar dilation in patients undergoing heart surgery

  BMI ≥ 30 BMI < 30 P value
Number (n) 28 36  
Body mass index - Kg/M 2 (mean ± SD) 33.4 ± 3.8 26.3 ± 3.1 < 0.001
Age - years (mean ± SD) 69.6 ± 6.8 65.5 ± 15.5 0.193
Male (%) 20 (71.4) 30 (83.3) 0.278
Coronary response    
Passive diameter - μm (mean ± SEM) 111.3 ± 5.5 118.1 ± 5.0 0.369
Bradykinin response [E -8 M] -% dilation (mean ± SEM) 54.6 ± 4.7 45.9 ± 4.7 0.199
Underlying disease    
Diabetes mellitus (%) 13 (46.4) 17 (47.2) 0.950
Hypertension (%) 25 (89.3) 31 (86.1) 0.672
Coronary artery disease (%) 13 (46.4) 18 (50.0) 0.886
Hypercholesterolemia (%) 22 (78.6) 26 (72.2) 0.691
Surgery    
Coronary artery bypass graft (%) 25 (89.3) 25 (69.4) 0.049
Aortic valve replacement (%) 4 (14.3) 18 (50.0) 0.003
Mitral valve replacement (%) 1 (2.8) 0 (0.0) 0.374
Medications    
ACE inhibitor (%) 8 (28.6) 20 (55.6) 0.040
Angiotensin receptor blocker (%) 13 (46.4) 10 (27.8) 0.144
Aspirin (%) 23 (82.1) 27 (75.0) 0.456
Statin (%) 15 (53.6) 26 (72.2) 0.087
Insulin (%) 6 (21.4) 7 (19.4) 0.889
Anti-diabetics (%) 6 (21.4) 7 (19.4) 0.889
Beta blocker (%) 25 (89.3) 21 (58.3) 0.009
Diuretic (%) 6 (21.4) 15 (41.7) 0.073
Calcium channel blocker (%) 13 (46.4) 16 (44.4) 0.955
H+ blocker (%) 11 (39.3) 6 (16.7) 0.049
Nitrate (%) 8 (28.6) 4 (11.1) 0.085
  1. All data, unless specified otherwise, represent number (n) and frequencies (%) of distribution in parentheses. P values for comparison between obese (BMI ≥ 30) and non-obese patients were calculated using Chi-squared test or t-test for categorical or continuous variables respectively.