Table 2.
Demographic and Pre/Intra-operative Characteristics (Unmatched)
| Variable (mean n, %) | All (n = 639) | P0 (n = 302) | P2(n = 337) | p value |
|---|---|---|---|---|
| Age (years) | 66 ± 11.6 | 67 ± 10.2 | 65.1 ± 12.6 | 0.036 |
| Gender (male) | 441 (69%) | 205 (68%) | 236 (70%) | 0.61 |
| Weight (kg) | 89 ± 20 | 88 ± 20 | 90 ± 21 | 0.13 |
| Diabetes | 274 (43%) | 118 (39%) | 156 (46%) | 0.078 |
| Hypertension | 515 (81%) | 243 (80%) | 272 (81%) | 1 |
| Prior PCI | 155 (24%) | 70 (23%) | 85 (25%) | 0.58 |
| NYHA I | 329 (51%) | 162 (54%) | 167 (50%) | 0.3 |
| NYHA II, III or IV | 310 (49%) | 140 (46%) | 170 (50%) | 0.3 |
| Preop atrial arrhythmia | 131 (21%) | 59 (20%) | 72 (21%) | 0.62 |
| Preop-IABP | 50 (7.8%) | 25 (8.3%) | 25 (7.4%) | 0.77 |
| ADP inhibitors | 55 (8.6%) | 37 (12%) | 18 (5.3%) | 0.0027 |
| Preop Aspirin | 621 (97%) | 300 (99%) | 321 (95%) | 0.0015 |
| Preop Warfarin | 6 (0.94%) | 3 (0.99%) | 3 (0.89%) | 1 |
| GIIb/IIIa | 7 (1.1%) | 7 (2.3%) | 0 (0%) | 0.0051 |
| First Time Surgery | 601 (94%) | 284 (94%) | 317 (94%) | 1 |
| Reoperation | 38 (5.9%) | 18 (6%) | 20 (5.9%) | 1 |
| Operative Status (Elective) | 269 (42%) | 130 (43%) | 139 (41%) | 0.69 |
| Opertive Status (Non Elective) | 370 (58%) | 172 (57%) | 198 (59%) | 0.69 |
| CABG | 359 (56%) | 167 (55%) | 192 (57%) | 0.69 |
| Valve | 79 (12%) | 49 (16%) | 30 (8.9%) | 0.0056 |
| CABG + Valve | 78 (12%) | 38 (13%) | 40 (12%) | 0.81 |
| Other | 123 (19%) | 48 (16%) | 75 (22%) | 0.045 |
| CPB (yes) | 295 (46%) | 140 (46%) | 155 (46%) | 0.94 |
Abbreviations: Coronary Artery Bypass Surgery (CABG), Cardiopulmonary Bypass (CPB), Glycoprotein GIIb/IIIa inhibitor (GIIb/IIIa), Intra Aortic Balloon Pump (IABP), New York Heart Association (NYHA), Percutaneous Cardiac Interventions (PCI)