Table 1.
Baseline demographic characteristics
| Stable patients with elective PCI |
||
|---|---|---|
| Pre-PCI cTn levels | Hs-troponin | Conventional troponin |
| n (%) or median (Q1–Q3) | (n = 4719) | (n = 4362) |
| Demographics | ||
| Age (years) | 68.1 (60.3–74.1) | 66 (58.0–74.0) |
| Elderly patients (>75 years) | 997 (21.1) | 851 (19.5) |
| Men | 3635 (77.0) | 3315 (76.0) |
| Body mass index (kg/m²) | 26.8 (24.8–29.7) | 26.7 (24.5–29.4) |
| Diabetes | 1380 (29.2) | 1139 (26.1) |
| Hypertension | 3369 (71.4) | 1788 (41.0) |
| Dyslipidaemia | 3593 (76.1) | 1782 (40.9) |
| Current smoker | 831 (17.6) | 1501 (34.4) |
| Prior smoker | 1381 (29.3) | 1626 (37.3) |
| Prior stroke | 422 (8.9) | 226 (5.2) |
| Prior myocardial Infarction | 1152 (24.4) | 1665 (38.2) |
| Prior coronary artery bypass graft | 508 (10.8) | 577 (13.2) |
| Estimated glomerular filtration rate | 78.2 (60.7–99.1) | 74.6 (60.2–89.7) |
| Left ventricular ejection fraction | 60 (54–60) | 55.0 (50.0–60.0) |
| Treatment at baseline | ||
| Aspirin | 3362/4693 (71.6) | 3799/4362 (81.7) |
| Clopidogrel | 1510/4693 (32.2) | 1468/4362 (33.7) |
| Ticagrelor | 137/4693 (2.9) | 4/4362 (0.1) |
| Prasugrel | 244/4647 (5.3) | 0/4362 (0) |
| Beta-blocker | 2128/3458 (61.5) | 2995/4352 (68.8) |
| Renin angiotensin blockers | 2207/3458 (63.8) | 352/803 (43.8) |
| Statin | 2154/3458 (62.3) | 1986/2404 (81.9) |