Table 2.
Table of Bivariate Analysis Comparing Black to White Population
| White, n=463 | Black, n=644 | P Value | |
|---|---|---|---|
| Age, y, (IQR) | 59 (51, 68) | 57 (50, 65) | |
| Male, N (%) | 327 (71.2) | 411 (64.3) | 0.016 |
| BMI, kg/m2 | 28.7 (25.5‐33.0) | 28.1 (24.4‐33.2) | 0.130 |
| Marital status, N (%) | <0.001 | ||
| Married | 233 (55.1) | 161 (26.3) | |
| Insurance, N (%) | <0.001 | ||
| Private | 178 (38.4) | 133 (20.7) | |
| Public | 202 (43.6) | 353 (54.9) | |
| None | 83 (17.9) | 157 (24.4) | |
| Risk factors, N (%) | |||
| Diabetes mellitus | 131 (28.3) | 206 (32.0) | 0.188 |
| Hyperlipidemia | 166 (35.9) | 228 (35.4) | 0.878 |
| Hypertension | 275 (59.4) | 477 (74.1) | <0.001 |
| Previous MI | 124 (26.8) | 162 (25.2) | 0.542 |
| CHF | 29 (6.3) | 73 (11.3) | 0.004 |
| CKD | 18 (3.9) | 45 (7.0) | 0.028 |
| ESRD | 5 (1.1) | 31 (4.8) | 0.001 |
| Family history of CAD | 221 (47.7) | 214 (33.2) | <0.001 |
| Tobacco use | 258 (55.7) | 359 (55.8) | 0.994 |
| Outcomes, N (%) | |||
| CVA | 1 (0.2) | 6 (1.0) | 0.142 |
| Shock | 42 (9.4) | 34 (5.4) | 0.012 |
| Required CABG | 53 (12.0) | 43 (6.9) | 0.005 |
| Death | 36 (7.8) | 41 (6.4) | 0.367 |
| Median household income | $34 568 | 27 637 | <0.001 |
| Median household income | <0.001 | ||
| <$25 000 | 35 (7.6) | 147 (22.8) | |
| $25 000 to $52 000 | 357 (77.3) | 461 (71.6) | |
| $52 000 to $75 000 | 63 (13.6) | 34 (5.3) | |
| >$75 000 | 7 (1.5) | 2 (0.3) | |
| Poverty | 35 (7.5) | 147 (22.8) | <0.001 |
| Median times in minutes | |||
| Door to balloon time, IQR | 58 (42‐89) | 60 (42‐77) | 0.863 |
| Symptom onset to door, IQR | 120 (60‐560) | 180 (60‐1400) | 0.001 |
| Late presentation (>180 minutes) | 151 (40.7%) | 272 (52.6%) | <0.001 |
Results are from the multivariable model. BMI indicates body mass index; CABG, coronary artery bypass graft; CAD, coronary artery disease; CHF, congestive heart failure; CKD, chronic kidney disease; CVA, cerebrovascular accident; ESRD, end‐stage renal disease; IQR, interquartile range; MI, myocardial infarction.