Table 1.
Baseline characteristics
| Variable | All patients N = 257 |
Pre-COVID N = 198 |
COVID period N = 59 |
p Value |
|---|---|---|---|---|
| Age (years ± SD) | 80.3 ± 9 | 80.2 ± 9.5 | 80.5 ± 6.9 | 0.82 |
| Men | 127 (50%) | 97 (49%) | 30 (51%) | 0.95 |
| Body mass index (Kg/m2 ± SD) | 28.1±5.3 | 28.4±5.7 | 27.3±3.7 | 0.16 |
| NYHA class III-IV | 121 (47%) | 89 (45%) | 32 (54%) | 0.28 |
| STS score, (mean ± SD) | 3.1± 2.4 | 3.2± 2.4 | 2.1± 0.6 | 0.13 |
| Hypertension | 197 (77%) | 151 (77%) | 46 (78%) | 0.97 |
| Diabetes mellitus | 97 (38%) | 75 (38%) | 22 (37%) | 1 |
| Chronic obstructive pulmonary disease | 17 (7%) | 12 (6%) | 5 (10%) | 0.56 |
| Malignancy | 48 (19%) | 33 (17%) | 15 (25%) | 0.19 |
| Cerebrovascular disease | 26 (10%) | 21 (11%) | 5 (9%) | 0.77 |
| Atrial fibrillation | 66 (26%) | 46 (24%) | 20 (34%) | 0.15 |
| Chronic renal failure | 83 (32%) | 65 (33%) | 18 (31%) | 0.86 |
| Liver disease | 4 (2%) | 3 (2%) | 1 (2%) | 1 |
| Peripheral artery disease | 12 (7%) | 6 (5%) | 6 (10%) | 0.28 |
| Previous myocardial infarction | 32 (21%) | 20 (22%) | 12 (20%) | 0.84 |
| Previous revascularization (PCI or CABG) | 96 (37%) | 79 (40%) | 16 (27%) | 0.09 |
| Anticoagulant therapy | 71 (28%) | 47 (24%) | 24 (41%) | 0.01 |
| Baseline albumin (mg/dL ± SD) | 3.97±1.78 | 3.98±2.03 | 3.97±0.32 | 0.98 |
CABG = Coronary artery bypass graft; PCI = Percutaneous Coronary Intervention; STS = Society of Thoracic Surgeons Score.