Patient demographics and clinical characteristics
| Patient characteristics | All patients N=202 | SARS-CoV-2 PCR positive N=89 | SARS-CoV-2 PCR negative N=113 | P value |
| Age, mean (SD) | 62.4 (16.1) | 62.6 (14.9) | 62.3 (17.2) | 0.281 |
| Male, n (%) | 117 (57.8) | 53 (59.6) | 64 (56.6) | 0.336 |
| Admission, n (%) | 140 (69.3) | 65 (73.0) | 75 (66.4) | 0.000 |
| Admission Intensive Care, n (%) | 10 (4.9) | 8 (8.9) | 2 (1.8) | 0.000 |
| 30-day mortality, n (%) | 15 (7.4) | 6 (6.7) | 9 (8.0) | 0.467 |
| In-hospital mortality, n (%) | 10 (4.9) | 5 (5.6) | 5 (4.4) | 0.018 |
| Duration of symptoms days (SD) | 6.8 (5.6) | 7.4 (4.1) | 6.2 (6.5) | 0.001 |
| Comorbidities, n (%) | ||||
| Asthma | 12 (5.9) | 4 (4.5) | 8 (7.1) | 0.113 |
| Chronic cardiovascular disease | 44 (21.7) | 18 (20.0) | 26 (23.0) | 0.301 |
| Chronic Obstructive Pulmonary Disease (gold >2), n (%) | 31 (15.3) | 12 (13.3) | 19 (16.8) | 0.170 |
| Current malignancy | 42 (20.7) | 9 (10.0) | 33 (29.2) | 0.000 |
| Diabetes mellitus | 35 (17.3) | 21 (23.6) | 14 (12.4) | 0.000 |
| Laboratory analysis on admission | ||||
| Positive blood culture, n (%) | 12 (5.9) | 1 (1.1) | 11 (9.7) | 0.798 |
| Modified early warning score mean (SD) | 2.6 (1.9) | 2.9 (1.9) | 2.3 (1.8) | 0.542 |
| Temperature (°C), mean (SD) | 37.5 (1.2) | 37.8 (1.0) | 37.2 (1.3) | 0.105 |
| Respiratory rate, mean (SD) | 21.1 (7.0) | 21.7 (7.4) | 20.5 (6.6) | 0.566 |
| Saturation levels (SD) | 95.8 (3.2) | 94.9 (3.5) | 96.5 (2.8) | 0.120 |
| Intubation, n (%) | 10 (4.9) | 8 (8.9) | 2 (1.8) | 0.000 |
| Oxygen therapy, n (%) | 59 (29.1) | 35 (38.9) | 24 (22) | 0.000 |