Table 1.
Patient baseline characteristics stratified by type of acute myocardial infarction (STEMI vs NSTEMI)
| STEMI, n=1856 | NSTEMI, n=2714 | P value | All AMI, n=4570 | Missing, n (%) | |
| Variables | |||||
| Age (years), mean (SD) | 60.9 (11.5) | 65.5 (11.9) | <0.001 | 63.6 (11.9) | 17 (0.4) |
| Women, n (%) | 432 (23.3) | 720 (26.6) | 0.012 | 1152 (25.2) | 15 (0.3) |
| IMD score, median (IQR) | 19.1 (11.0–34.2) | 18.1 (11.0–30.4) | 0.010 | 18.5 (11.0–31.8) | 264 (5.8) |
| BMI, median (IQR), kg/ m2 | 27.3 (24.8–30.9) | 28.2 (25.3–31.7) | <0.001 | 27.8 (25.1–31.3) | 1794 (39.3) |
| Ex/current smoking status, n (%) | 1251 (67.4) | 1761 (64.9) | <0.001 | 3012 (65.9) | 143 (3.1) |
| Caucasian, n (%) | 1415 (76.2) | 2071 (76.3) | 0.218 | 3486 (76.3) | 1004 (22.0) |
| Family history of CHD, n (%) | 696 (37.5) | 998 (36.8) | 0.295 | 1694 (37.1) | 599 (13.1) |
| Comorbidities | |||||
| Previous PCI, n (%) | 68 (3.7) | 245 (9.0) | <0.001 | 313 (6.9) | 170 (3.7) |
| Previous CABG surgery, n (%) | 39 (2.1) | 251 (9.3) | <0.001 | 290 (6.4) | 168 (3.7) |
| Previous AMI, n (%) | 127 (6.8) | 506 (18.6) | <0.001 | 633 (13.9) | 169 (3.7) |
| Previous angina, n (%) | 162 (8.7) | 734 (27.0) | <0.001 | 896 (19.6) | 169 (3.7) |
| Chronic renal failure, n (%) | 17 (0.9) | 106 (3.9) | <0.001 | 123 (2.69%) | 180 (3.9) |
| Hypertension, n (%) | 644 (34.7) | 1306 (48.1) | <0.001 | 1950 (42.7) | 178 (3.9) |
| Chronic heart failure, n (%) | 6 (0.3) | 72 (2.7) | <0.001 | 78 (1.71) | 177 (3.9) |
| Hypercholesterolaemia, n (%) | 469 (25.3) | 927 (34.2) | <0.001 | 1396 (30.6) | 216 (4.7) |
| Peripheral vascular disease, n (%) | 43 (2.3) | 109 (4.0) | 0.002 | 152 (3.3) | 302 (6.6) |
| Asthma/COPD, n (%) | 184 (9.9) | 370 (13.6) | 0.001 | 554 (12.1) | 188 (4.1) |
| Cerebrovascular disease, n (%) | 52 (2.8) | 134 (4.9) | 0.001 | 186 (4.1) | 180 (3.9) |
| Diabetes mellitus, n (%) | 202 (10.9) | 524 (19.3) | <0.001 | 726 (15.9) | 93 (2.0) |
| Treatments during hospitalisation | |||||
| PCI, n (%) | 654 (35.2) | 1169 (43.1) | <0.001 | 1823 (39.9) | 735 (16.1) |
| CABG surgery, n (%) | 36 (1.9) | 296 (10.9) | <0.001 | 332 (7.3) | 735 (16.1) |
| Discharge medications | |||||
| Aspirin, n (%) | 1720 (92.7) | 2228 (82.1) | <0.001 | 3948 (86.4) | 142 (3.1) |
| Beta blocker, n (%) | 1650 (88.9) | 2031 (74.8) | <0.001 | 3681 (80.6) | 144 (3.2) |
| Statins, n (%) | 1714 (92.4) | 2245 (82.7) | <0.001 | 3959 (86.6) | 141 (3.1) |
| ACEi, n (%) | 1658 (89.3) | 2061 (75.9) | <0.001 | 3719 (81.4) | 161 (3.5) |
| Cardiac rehabilitation | |||||
| Cardiac rehabilitation offered at baseline, n (%) | 1734 (93.4) | 2467 (90.9) | <0.001 | 4201 (91.9) | 264 (5.8) |
| Adverse cardiac events | |||||
| Deaths in hospital n (%) | 2 (0.1) | 14 (0.5) | 0.022 | 16 (0.3) | 61 (1.3) |
| Reinfarction in hospital n (%) | 16 (0.9) | 14 (0.5) | 0.153 | 30 (0.7) | 151 (3.3) |
| HRQoL | |||||
| Baseline EQ-VAS, mean (SD) | 65.0 (19.8) | 63.8 (20.0) | 0.051 | 64.3 (19.9) | 193 (4.2) |
ACEi, ACE inhibitor; AMI, acute myocardial infarction; BMI, Body Mass Index; CABG, coronary artery bypass graft; CHD, coronary heart disease; COPD, chronic obstructive pulmonary disease; HRQoL, health-related quality of life; IMD, Index of Multiple Deprivation; NSTEMI, non-ST-elevation myocardial infarction; PCI, percutaneous coronary intervention; STEMI, ST-elevation myocardial infarction.