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Table 1 Baseline characteristics of the 1,936 cardiac surgery patients included in the study

From: Dose dependent effect of statins on postoperative atrial fibrillation after cardiac surgery among patients treated with beta blockers

   Statin Treatment  
  All patients
n = 1936
Yes
n = 1322
No
n = 614
p value
Clinical data     
   Age [years] 66+10 65+10 67+10 0.01
   Male, % 99% 99% 99% 0.46
   BMI [kg/m2] 29.4+5.4 30+5.4 29+5.3 0.03
   Diabetes mellitus, % 34% 35% 30% 0.03
   Hypertension, % 60% 81% 73% 0.001
   Chronic lung disease, % 23% 22% 26% 0.06
   Peripheral vascular disease, % 30% 30% 30% 0.90
   Cerebrovascular disease, % 22% 22% 21% 0.49
   Current Smoking, % 68% 21% 17% 0.03
   History of myocardial infarction, % 42% 46% 33% <0.0001
   History of heart surgery, % 9% 9% 9% 0.82
   LV ejection fraction <50%, % 41% 42% 47% 0.05
   NYHA heart failure class III/IV, % 35% 33% 39% 0.01
   History of atrial fibrillation, % 5.7% 6.3% 4.6% 0.13
   Chronic kidney disease, % 3.7% 11% 13% 0.53
   Cardiomegaly, % 27% 25% 31% 0.01
Preoperative medications     
   BetaBlockers, % 53% 57% 46% <0.0001
   ACE-I or ARB, % 72% 73% 69% 0.59
   Gemfibrozil, % 8% 8% 7% 0.59
   Calcium Chanel blocker, % 21% 23% 17% 0.01
   Amiodarone, % 16% 16% 17% 0.31
   Diuretics, % 41% 40% 43% 0.13
   Digoxin, % 8% 7% 12% <0.0001
  1. Continuous variables are expressed as mean + SD or median with interquartile range
  2. Abbreviations: LV: left ventricular; NYHA:New York Heart Association; ACE-I: Angiotensin Converting Enzyme Inhibitor; ARB: Angiotensin Receptor Blocker;BMI: Body Mass Index