Table 1.
Baseline Characteristics of Study Population
| Characteristic | n=1144 |
|---|---|
| Age, y (std dev) | 58.8 (±12.9) |
| Male, N (%) | 758 (66.3) |
| BMI, kg/m2 | 28.2 (24.8‐33.1) |
| Race, N (%) | |
| White | 463 (40.5) |
| Black | 644 (56.3) |
| Others | 37 (3.2) |
| Marital status, N (%) | |
| Married | 410 (35.8) |
| Insurance, N (%) | |
| Private | 322 (28.2) |
| Public | 559 (48.9) |
| None | 251 (21.9) |
| Risk factors, N (%) | |
| Diabetes mellitus | 342 (29.9) |
| Hyperlipidemia | 401 (35.1) |
| Hypertension | 767 (67.1) |
| Previous myocardial infarction | 292 (25.5) |
| Congestive heart failure | 103 (9.0) |
| Chronic kidney disease | 63 (5.5) |
| End‐stage renal disease | 36 (3.2) |
| Family history of CAD | 441 (38.6) |
| Tobacco use | 629 (55.0) |
| Outcomes, N (%) | |
| Confirmed STEMI | 755 (66.0) |
| Cerebrovascular accident | 7 (0.61) |
| STEMI due to stent thrombosis | 80 (7.0) |
| Shock | 78 (6.8) |
| Required CABG | 97 (8.5) |
| Death | 79 (6.9) |
| Median household income (IQR) | $32 412 (26 137‐38 826) |
| Median household income categories | |
| <$25 000 | 184 (16.1%) |
| $25 000 to $52 000 | 837 (73.2%) |
| $52 000 to $75 000 | 100 (8.7%) |
| >$75 000 | 11 (1.0%) |
| Times in minutes | |
| Median door to balloon, IQR | 60 (42‐82) |
| Median symptom onset to door, IQR | 120 (60‐720) |
| Late presentation (>180 minutes), N (%) | 429 (47.5) |
BMI indicates body mass index; CABG, coronary artery bypass graft; CAD, coronary artery disease; IQR, interquartile range; std dev, standard deviation; STEMI, ST elevation myocardial infarction.