Table 1. Baseline characteristics of the early vs. late cohort.
| Variable | Early cohort (n = 1633) | Late cohort (n = 1642) | P-value |
|---|---|---|---|
| Age, y, median, (IQR*) | 78 (70.5–83) | 78 (71–84) | 0.05 |
| Women | 35.3 | 38 | 0.11 |
| Smoking | 14.3 | 14 | 0.83 |
| Diabetes | 36.7 | 36.1 | 0.74 |
| STEMI † | 28.5 | 25.9 | 0.01 |
| Hypertension | 81 | 83.7 | 0.04 |
| Atrial fibrillation | 26.2 | 27.4 | 0.44 |
| Heart failure during hospitalization | 34.6 | 32.1 | 0.13 |
| Previous MI ‡ | 18.7 | 16.9 | 0.18 |
| Previous intra-cerebral hemorrhage | 3.4 | 4.4 | 0.13 |
| Previous dialysis | 0.8 | 1.2 | 0.23 |
| Previous PAD § | 12.4 | 11.8 | 0.55 |
| Thrombolysis during hospitalization | 1 | 0.4 | 0.02 |
| PCI | | during hospitalization | 49.9 | 55.7 | 0.001 |
| CABG # during hospitalization | 0.9 | 1.4 | 0.14 |
| eGFR**, median (IQR) | 62.8 (45.1–79.6) | 62.1 (45–79.3) | 0.52 |
Values represent percentages (%), unless otherwise indicated.
*IQR: interquartile range
† STEMI: ST-elevation myocardial infarction
‡ MI: myocardial infarction
§ PAD: Peripheral artery disease
| | PCI: Percutaneous coronary intervention
# CABG: Coronary artery bypass graft surgery
** eGFR: Estimated glomerular filtration rate.