Table .
Baseline Characteristics According to Frailty Risk Group
| Characteristic | Frailty risk group | Total | ||
|---|---|---|---|---|
| Low | Intermediate | High | ||
| Total No. | 3437 | 2277 | 257 | 5971 |
| Frailty score, median (IQR) | 1.5 (0.0–2.6) | 6.9 (5.3–9.5) | 18.7 (16.6–22.9) | 3.2 (1.1–6.6) |
| Men, n (%) | 1904 (55.4) | 1268 (55.7) | 134 (52.1) | 3306 (55.4) |
| Age, median (IQR), y | 81 (77–85) | 82 (77–85) | 82 (76–85) | 81 (77–85) |
| Length of stay, median (IQR), d | 4 (2–7) | 4 (3–7) | 4 (2–8) | 4 (2–7) |
| Admission in preceding year, n | ||||
| Median (IQR) | 1 (1–2) | 2 (1–3) | 3 (1–4) | 1 (1–3) |
| Mean (SD) | 1.6 (1.5) | 2.3 (2.1) | 3.2 (3.1) | 1.9 (1.9) |
| Time in hospital in preceding year, d | ||||
| Median (IQR) | 3 (1–9) | 7 (2–16) | 12 (3–25) | 4 (1–12) |
| Mean (SD) | 6.9 (11.3) | 11.8 (15.1) | 17.3 (18.8) | 9.2 (13.6) |
| Comorbidities, n (%) | ||||
| Stroke/systemic embolism | 248 (7.2) | 476 (20.9) | 88 (34.2) | 812 (13.6) |
| Myocardial infarction | 359 (10.4) | 298 (13.1) | 47 (18.3) | 704 (11.8) |
| Ischemic heart disease | 1451 (42.2) | 1203 (52.8) | 142 (55.3) | 2796 (46.8) |
| Heart failure | 829 (24.1) | 789 (34.7) | 110 (42.8) | 1728 (28.9) |
| Atrial fibrillation | 1057 (30.8) | 897 (39.4) | 126 (49.0) | 2080 (34.8) |
| Peripheral artery disease | 306 (8.9) | 332 (14.6) | 58 (22.6) | 696 (11.7) |
| Previous PCI | 742 (21.6) | 598 (26.3) | 70 (27.2) | 1410 (23.6) |
| Previous CABG | 134 (3.9) | 126 (5.5) | 17 (6.6) | 277 (4.6) |
| Diabetes | 579 (16.8) | 481 (21.1) | 63 (24.5) | 1123 (18.8) |
| COPD | 355 (10.3) | 403 (17.7) | 64 (24.9) | 822 (13.8) |
| Chronic kidney disease | 156 (4.5) | 368 (16.2) | 75 (29.2) | 599 (10.0) |
| Liver disease | 50 (1.5) | 61 (2.7) | 9 (3.5) | 120 (2.0) |
| Pharmacotherapy, n (%) | ||||
| Acetylsalicylic acid | 1630 (47.4) | 1039 (45.6) | 93 (36.2) | 2762 (46.3) |
| ADP receptor antagonist | 749 (21.8) | 636 (27.9) | 76 (29.6) | 1461 (24.5) |
| Oral anticoagulants | 1033 (30.1) | 822 (36.1) | 106 (41.2) | 1961 (32.8) |
| β Blockers | 1646 (47.9) | 1186 (52.1) | 130 (50.6) | 2962 (49.6) |
| Statins | 2141 (62.3) | 1437 (63.1) | 154 (59.9) | 3732 (62.5) |
| Calcium channel blockers | 1124 (32.7) | 757 (33.2) | 67 (26.1) | 1948 (32.6) |
| Renin‐angiotensin system inhibitors | 1854 (53.9) | 1205 (52.9) | 119 (46.3) | 3178 (53.2) |
| Diuretics | 1333 (38.8) | 762 (33.5) | 56 (21.8) | 2151 (36.0) |
CABG, indicates coronary artery bypass grafting; COPD, chronic obstructive pulmonary disease; IQR, interquartile range; and PCI, percutaneous coronary intervention.