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Table 1 Baseline demographics, medical histories, and prior cardiac medications by race

From: The use of percutaneous coronary intervention in black and white veterans with acute myocardial infarction

Variable Black (n = 680) White (n = 3529) P-value
Mean age (years) 67 ± 13 70 ± 11 <0.0001
Age    <0.0001
   < 50 9% 3%  
   50–59 27% 18%  
   60–64 9% 11%  
   65–69 8% 11%  
   70–79 26% 32%  
   80–89 18% 22%  
   90+ 2% 2%  
Men 99% 98% 0.08
Body mass index 27.0 ± 6.0 28.0 ± 6.0 <0.0001
Miles from home to hospital 22 ± 88 41 ± 116 <0.0001
Geographic region of medical center    <0.0001
   Northeast 16% 15%  
   South 52% 43%  
   Midwest 21% 21%  
   West 11% 20%  
Medical histories    
   Myocardial infarction 25% 28% 0.14
   Lipid disorder 55% 64% <0.0001
   Coronary angioplasty 12% 14% 0.14
   Coronary artery bypass surgery 10% 24% <0.0001
   Congestive heart failure 33% 31% 0.43
   Diabetes mellitus 28% 23% 0.004
   Renal disease 18% 13% <0.0001
   Cerebrovascular disease 9% 8% 0.46
   Chronic obstructive pulmonary disease 13% 23% <0.0001
   Dementia 19% 15% 0.016
   Cancer 10% 10% 0.81
   Cigarette smoking in past year 41% 31% <0.0001
Previous medications    
   Aspirin 48% 49% 0.52
   Beta blockers 51% 54% 0.13
   Angiotensin converting enzyme inhibitors 50% 47% 0.24
   Lipid lowering agents 48% 53% 0.031
   Insulin 13% 14% 0.61
   Platelet inhibitors 11% 12% 0.20
  1. AMI Acute myocardial infarction