Baseline demographics and comorbidities on admission
| All patients (n=546) | Discharged (n=465) | Deceased (n=81) | P value | |
| Mean age (SD), years | 62.9 (19.8) | 59.6 (19.1) | 81.7 (11.3) | <0.001 |
| Male, no (%) | 283 (51.8) | 240 (51.6) | 43 (53.1) | 0.811 |
| Healthcare worker, no (%) | 35 (6.4) | 34 (7.3) | 1 (1.2) | 0.046 |
| Nursing home resident, no (%) | 92 (16.8) | 56 (12.0) | 36 (44.4) | <0.001 |
| Hypertension, no (%) | 270 (49.5) | 212 (45.6) | 58 (71.6) | <0.001 |
| Coronary artery disease, no (%) | 64 (11.7) | 43 (9.2) | 21 (25.9) | <0.001 |
| Heart failure or cardiomyopathy, no (%) | 35 (6.4) | 17 (3.7) | 18 (22.2) | <0.001 |
| Atrial fibrillation or flutter, no (%) | 54 (9.9) | 38 (8.2) | 16 (19.8) | 0.004 |
| Severe valvular disease, no (%) | 13 (2.4) | 8 (1.7) | 5 (6.2) | 0.031 |
| Stroke or transient ischaemic attack, no (%) | 40 (7.3) | 26 (5.6) | 14 (17.3) | <0.001 |
| Hypercholesterolaemia, no (%) | 158 (28.9) | 128 (27.5) | 30 (37.0) | 0.086 |
| Diabetes mellitus, no (%) | 143 (26.2) | 110 (23.7) | 33 (40.7) | 0.002 |
| Peripheral arterial disease, no (%) | 7 (1.3) | 5 (1.1) | 2 (2.5) | 0.279 |
| Current or recent smoker (<1 year), no (%) | 25 (4.6) | 22 (4.7) | 3 (3.7) | 1.000 |
| Chronic obstructive pulmonary disease, no (%) | 46 (8.4) | 29 (6.2) | 17 (21.0) | <0.001 |
| Asthma, no (%) | 63 (11.5) | 57 (12.3) | 6 (7.4) | 0.259 |
| Chronic kidney disease (eGFR <60 mL/min/1.73 m2), no (%) | 46 (8.4) | 29 (6.2) | 17 (21.0) | <0.001 |
| ACE inhibitor, no (%) | 85 (15.6) | 61 (13.1) | 24 (29.6) | <0.001 |
| ARB, no (%) | 109 (20.0) | 94 (20.2) | 15 (18.5) | 0.880 |
| Mineralocorticoid receptor antagonist, no (%) | 18 (3.3) | 13 (2.8) | 5 (6.2) | 0.166 |
| Loop diuretic, no (%) | 63 (11.5) | 36 (7.7) | 27 (33.3) | <0.001 |
| Thiazide diuretic, no (%) | 39 (7.1) | 31 (6.7) | 8 (9.9) | 0.347 |
| Beta blocker, no (%) | 86 (15.8) | 62 (13.3) | 24 (29.6) | <0.001 |
| Non-dihydropyridine calcium channel blocker, no (%) | 7 (1.3) | 6 (1.3) | 1 (1.2) | 1.000 |
| Dihydropyridine calcium channel blocker, no (%) | 84 (15.4) | 71 (15.3) | 13 (16.0) | 0.868 |
ARB, angiotensin receptor blocker; eGFR, estimated glomerular filtration rate.