Table 1.
Baseline characteristics
| Variable | All patients n = 1112 |
MACE n = 77 |
No MACE n = 1033 |
P-value |
|---|---|---|---|---|
| Cardiovascular risk factors | ||||
| Age (years) | 64 (53–72) | 72 (61–77) | 63 (52–72) | <0.001 |
| Male sex | 837/1112 (75.3) | 51/77 (66.2) | 785/1033 (76.0) | 0.055 |
| Active smoking | 449/1032 (43.5) | 21/70 (30.0) | 427/960 (44.5) | 0.018 |
| Hypertension | 792/1110 (71.4) | 64/77 (83.1) | 726/1031 (70.4) | 0.017 |
| Hyperlipoproteinaemia | 421/1104 (38.1) | 26/77 (33.8) | 394/1025 (38.4) | 0.416 |
| Diabetes | 260/1110 (23.6) | 27/77 (35.1) | 232/1031 (22.5) | 0.012 |
| Body mass index (kg/m²) | 27.5 (25.0–30.4) | 27.3 (25.3–31.1) | 27.5 (24.9–30.3) | 0.601 |
| Previous myocardial infarction | 76/1110 (6.8) | 5/77 (6.5) | 70/1031 (6.8) | 0.921 |
| ST-segment elevation | 768/1112 (69.1) | 52/77 (67.5) | 716/1033 (69.3) | 0.744 |
| Time symptoms to balloona (min) | 180 (109–315) | 192 (116–373) | 180 (108–310) | 0.306 |
| Atrial fibrillation | 64/1108 (5.8) | 11/77 (14.3) | 53/1029 (5.2) | 0.001 |
| Mitral regurgitation | 571/1077 (53.0) | 54/75 (72.0) | 564/1002 (56.3) | 0.024 |
| Killip class on admission | <0.001 | |||
| 1 | 985/1112 (88.6) | 50/77 (64.9) | 933/1033 (90.3) | |
| 2 | 88/1112 (7.9) | 18/77 (23.4) | 70/1033 (6.8) | |
| 3 | 23/1112 (2.1) | 5/77 (6.5) | 18/1033 (1.7) | |
| 4 | 16/1112 (1.4) | 4/77 (5.2) | 12/1033 (1.2) | |
| Diseased vessels | 0.009 | |||
| 1 | 555/1112 (49.9) | 28/77 (36.4) | 526/1033 (50.9) | |
| 2 | 333/1112 (29.9) | 24/77 (31.2) | 309/1033 (29.9) | |
| 3 | 224/1112 (20.1) | 25/77 (32.5) | 198/1033 (19.2) | |
| Affected artery | 0.140 | |||
| Left anterior descending | 454/1112 (40.8) | 41/77 (53.2) | 413/1033 (40.0) | |
| Left circumflex | 233/1112 (21.0) | 15/77 (19.5) | 216/1033 (20.9) | |
| Left main | 5/1112 (0.4) | 0/77 (0.0) | 5/1033 (0.5) | |
| Right coronary artery | 413/1112 (37.1) | 20/77 (26.0) | 393/1033 (38.0) | |
| Bypass graft | 7/1112 (0.6) | 1/77 (1.3) | 6/1033 (0.6) | |
| TIMI flow grade before PCI | 0.558 | |||
| 0 | 558/1112 (50.2) | 44/77 (57.1) | 513/1033 (49.7) | |
| 1 | 129/1112 (11.6) | 6/77 (7.8) | 123/1033 (11.9) | |
| 2 | 226/1112 (20.3) | 14/77 (18.2) | 211/1033 (20.4) | |
| 3 | 199/1112 (17.9) | 13/77 (16.9) | 186/1033 (18.0) | |
| Stent implanted | 1085/1112 (97.6) | 75/77 (97.4) | 1008/1033 (97.6) | 0.636 |
| TIMI flow grade after PCI | 0.154 | |||
| 0 | 21/1112 (1.9) | 1/77 (1.3) | 20/1033 (1.9) | |
| 1 | 23/1112 (2.1) | 4/77 (5.2) | 19/1033 (1.8) | |
| 2 | 83/1112 (7.5) | 8/77 (10.4) | 75/1033 (7.3) | |
| 3 | 985/1112 (88.6) | 64/77 (83.1) | 919/1033 (89.0) | |
| Time to CMR (days) | 3 (2–4) | 3 (2–4) | 3 (2–4) | 0.024 |
Data presented as n/N (%) or median (IQR). P-values were calculated for the comparison between patients with and without MACE, continuous variables were tested using the Mann–Whitney U test, categorical variables were tested using the χ2. Numbers in bold indicate statistical significance.
CABG, coronary artery bypass graft; MACE, major adverse cardiac event; PCI, percutaneous coronary intervention; TIMI, thrombolysis in myocardial infarction; CMR, cardiovascular magnetic resonance.
a
Only assessed in STEMI patients (n = 768).