TABLE 1.
Basel ine characteristics of patients with non-ST elevation myocardial infarction undergoing either percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG)
| Overall N = 2001 | PCI N = 521 | CABG N = 1480 | P value | |
|---|---|---|---|---|
| Age | 68 (59–76) | 70 (60–80) | 67 (59–75) | <.001 |
| Female sex, n (%) | 635 (31.7) | 190 (36.5) | 445 (30.1) | .007 |
| Race, n (%) | .090 | |||
| Caucasian | 1833 (91.6) | 474 (91.0) | 1359 (91.8) | |
| African American | 116 (5.8) | 38 (7.3) | 78 (5.3) | |
| Other | 52 (2.6) | 9 (1.7) | 43 (2.9) | |
| Body mass index, kg/m2 | 29 (26–33) | 29 (26–33) | 30 (26–33) | .533 |
| Left ventricular ejection fraction | 50 (40–56) | 50 (43–53) | 50 (40–58) | .118 |
| Body surface area, mean (SD) | 2.0 (0.2) | 2.0 (0.3) | 2.0 (0.2) | .090 |
| Chronic lung disease, n (%) | 415 (20.7) | 83 (15.9) | 332 (22.4) | .002 |
| Cerebrovascular disease, n (%) | 452 (22.6) | 110 (21.1) | 342 (23.1) | .349 |
| Heart failure, n (%) | 237 (11.8) | 83 (15.9) | 154 (10.4) | .001 |
| Dialysis, n (%) | 76 (3.8) | 26 (5.0) | 50 (3.4) | .098 |
| Current smoker, n (%) | 567 (28.3) | 115 (22.1) | 452 (30.5) | <.001 |
| Hypertension, n (%) | 1728 (86.4) | 436 (83.7) | 1292 (87.3) | .039 |
| Hyperlipidemia, n (%) | 1713 (85.6) | 384 (73.7) | 1329 (89.8) | <.001 |
| Diabetes, n (%) | 979 (48.9) | 247 (47.4) | 732 (49.5) | .421 |
| Liver Disease, n (%) | 131 (6.6) | 26 (5.0) | 105 (7.1) | .095 |
| Cancer, n (%) | 293 (14.6) | 108 (20.7) | 185 (12.5) | <.001 |
| Peripheral artery disease, n (%) | 382 (19.1) | 75 (14.4) | 307 (20.7) | .002 |
| Prior myocardial infarction, n (%) | 1618 (80.9) | 138 (26.5) | 1480 (100.0) | <.001 |
| Prior PCI, n (%) | 513 (25.6) | 164 (31.5) | 349 (23.6) | <.001 |
| Number of diseased vessels | <.001 | |||
| 1 | 34 (1.7) | 0(0) | 34 (2.3) | |
| 2 | 493 (24.6) | 198 (38.0) | 295 (19.9) | |
| 3 | 1459 (72.9) | 309 (59.3) | 1150 (77.7) | |
| Unknown | 15 (0.8) | 14 (2.7) | 1 (0.1) | |
| Completeness of revascularization, n (%) | 1348 (67.4) | 149 (28.6) | 1199 (81.0) | <.001 |
| Cardiopulmonary bypass time, min | 98 (78–120) | |||
| Cross clamp time, min | 69 (52–88) | |||
| Bilateral mammary use, n (%) | 217 (14.7) | |||
| Off-pump bypass, n (%) | 347 (23.4) | |||
| STS mortality risk percentage | 1.7 (0.9–3.9) |