Table 2 Baseline characteristics of the study population
|  | Total (n = 2886) | MACE (n = 590) | No MACE (n = 2296) | P value |
|---|---|---|---|---|
Demographics | ||||
 Age (y), mean (SD) | 64 (13.5) | 67 (12.0) | 63 (13.7) | < 0.001 |
 BMI (kg/m2), mean (SD) | 25 (3.6) | 25 (3.3) | 25 (3.7) | 0.557 |
 Male, n (%) | 1447 (50.1) | 354 (60.0) | 1093 (47.6) | < 0.001 |
Risk factors, n (%) | ||||
 Current smoker | 483 (16.7) | 148 (25.1) | 335 (14.6) | < 0.001 |
 Diabetes | 676 (23.4) | 180 (30.5) | 496 (21.6) | < 0.001 |
 Hypertension | 1725 (59.8) | 400 (67.8) | 1325 (57.7) | < 0.001 |
 Hyperlipidaemia | 281 (9.7) | 62 (10.5) | 219 (9.5) | 0.478 |
 Family history of premature CAD | 455 (15.8) | 79 (13.4) | 376 (16.4) | 0.076 |
Medical history, n (%) | ||||
 MI | 602 (20.9) | 159 (26.9) | 443 (19.3) | < 0.001 |
 CAG with stenosis ≥50% | 694 (24.0) | 141 (23.9) | 553 (24.1) | 0.924 |
 PCI | 511 (17.7) | 86 (14.6) | 425 (18.5) | 0.026 |
 CABG | 73 (2.5) | 29 (4.9) | 44 (1.9) | < 0.001 |
 Heart failure | 76 (2.6) | 27 (4.6) | 49 (2.1) | 0.001 |
 CRF | 48 (1.7) | 20 (3.4) | 28 (1.2) | < 0.001 |
 PAD | 5 (0.2) | 4 (0.7) | 1 (0) | 0.007 |
 Stroke | 396 (13.7) | 89 (15.1) | 307 (13.4) | 0.281 |
Presentation vital signs, mean (SD) | ||||
 SBP (mmHg) | 149 (27.7) | 147 (30.2) | 150 (27.0) | 0.021 |
 DBP (mmHg) | 84 (16.2) | 85 (18.5) | 84 (15.6) | 0.038 |
 Pulse (bpm) | 81 (19.1) | 83 (23.1) | 80 (17.9) | 0.007 |
Initial cTn positive, n (%) | 489 (16.9) | 370 (62.7) | 119 (5.2) | < 0.001 |
Initial ST deviation, n (%) | 1301 (45.1) | 415 (70.3) | 886 (38.6) | < 0.001 |
Scores, mean (SD) | ||||
 GRACE (IHDth) | 110 (34.0) | 135 (34.4) | 104 (30.8) | < 0.001 |
 GRACE (IHDthMI) | 121 (53.9) | 174 (52.6) | 107 (45.0) | < 0.001 |
 GRACE (OH6mDth) | 99 (30.4) | 118 (29.4) | 94 (28.7) | < 0.001 |
 GRACE (OH6mDthMI) | 101 (34.2) | 120 (34.6) | 96 (32.4) | < 0.001 |
 GRACE (IH6mDth) | 88 (30.7) | 109 (30.5) | 83 (28.4) | < 0.001 |
 GRACE (IH6mDthMI) | 107 (43.5) | 148 (42.7) | 96 (36.8) | < 0.001 |