Table 4.
Characteristics | All n=4340 |
White n=3022 |
Non-White n=1305 |
p-value |
---|---|---|---|---|
Sociodemographics | ||||
Age (years) | 59.1±12.3 | 59.9±12.3 | 57.1±12.2 | <0.001 |
Male | 67% | 71% | 58% | <0.001 |
White | 70% | |||
Married | 51% | 59% | 33% | <0.001 |
No insurance | 21% | 18% | 34% | <0.001 |
High school education | 79% | 85% | 67% | <0.001 |
Clinical factors | ||||
ST-elevations on admission | 43% | 48% | 32% | <0.001 |
Hypertension | 67% | 62% | 78% | <0.001 |
Prior MI | 21% | 20% | 24% | 0.005 |
Prior PCI | 20% | 20% | 18% | 0.062 |
Prior heart failure | 9% | 6% | 15% | <0.001 |
Diabetes | 31% | 27% | 40% | <0.001 |
Family history of heart disease | 74% | 79% | 63% | <0.001 |
Dyslipidemia | 49% | 51% | 44% | <0.001 |
Chronic kidney disease | 7% | 5% | 13% | <0.001 |
Chronic lung disease | 7% | 7% | 8% | 0.73 |
History of smoking | 59% | 59% | 60% | 0.93 |
Body mass index (kg/m2) | 29.5±6.5 | 29.4±6.1 | 29.8±7.3 | 0.12 |
Disease severity | ||||
Systolic blood pressure (mmHg) | 143±30 | 141±30 | 148±31 | <0.001 |
Diastolic blood pressure (mmHg) | 83±19 | 82±19 | 86±19 | <0.001 |
Heart rate on admission (bpm) | 83±22 | 82±23 | 85±21 | <0.001 |
Ejection fraction (%) | 49±13 | 49±12 | 48±15 | 0.018 |
Peak troponin level (ng/mL) | 29±73 | 33±73 | 19±65 | <0.001 |
Initial creatinine level (mg/dL) | 1.2±1.1 | 1.2±0.8 | 1.5±1.6 | <0.001 |
Initial hemoglobin level (g/dL) | 14.0±2.1 | 14.3±2 | 13.3±2.3 | <0.001 |
Hs-CRP level (mg/L) | 3.7±5.0 | 3.7±4.9 | 3.6±5.3 | 0.51 |
LDL level (mg/dL) | 95±32 | 95±31 | 96±35 | 0.51 |
GRACE score for 6 -month mortality56 | 101±30 | 101±30 | 100±30 | 0.39 |
Hospital procedures | ||||
Coronary angiography | 92% | 95% | 85% | <0.001 |
Primary PCI | 34% | 38% | 26% | <0.001 |
Nonprimary PCI | 29% | 32% | 24% | <0.001 |
Coronary bypass surgery | 9% | 10% | 8% | 0.007 |
Quality performance measures* | ||||
Aspirin within 24 hours | 97% | 98% | 97% | 0.47 |
Aspirin at discharge | 95% | 96% | 94% | <0.001 |
ACE-I/ARB for left ventricular systolic dysfunction | 85% | 87% | 83% | 0.17 |
Smoking cessation counseling | 75% | 80% | 66% | <0.001 |
Beta-blocker at discharge | 93% | 95% | 90% | <0.001 |
Fibrinolytics by 30 min or primary PCI by 90 min | 52% | 58% | 40% | <0.001 |
In-hospital outcomes | ||||
Mortality | 0.6% | 0.5% | 0.7% | 0.43 |
Length of stay (days) | 5.7±7.0 | 5.5±7.2 | 6.1±6.3 | 0.007 |
Abbreviations: MI=myocardial infarction; PCI=percutaneous coronary intervention; Hs-CRP=high sensitivity C-reactive protein; LDL=low density lipoprotein; ACE-I=angiotensin converting enzyme-inhibitor; ARB=angiotensin receptor blocker
For those eligible