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 |