Comparisons of symptoms and clinical characteristics between non-survivors and survivors at admission
| Variable | Total | Non-survivors | Survivors | P value |
| Symptoms, N (%) | ||||
| Dyspnoea | 836 (83) | 337 (87) | 500 (80) | 0.003 |
| Fever | 737 (73) | 265 (69) | 472 (76) | 0.01 |
| Cough | 688 (68) | 254 (66) | 434 (70) | 0.21 |
| Cephalea | 411 (41) | 138 (36) | 273 (44) | 0.01 |
| Myalgia/arthralgia | 424 (42) | 134 (35) | 290 (46) | <0.0001 |
| Upper airway symptoms | 411 (41) | 162 (42) | 249 (40) | 0.52 |
| Asthenia/adynamia | 498 (49) | 176 (46) | 322 (52) | 0.06 |
| Others (gastrointestinal, rash) | 545 (54) | 210 (54) | 335 (54) | 0.81 |
| Manchester Triage System, N (%) | <0.0001 | |||
| Standard and non-urgent | 639 (63) | 156 (40) | 483 (78) | |
| Urgent | 303 (30) | 188 (49) | 115 (18) | |
| Immediate and very urgent | 68 (7) | 42 (11) | 26 (4) | |
| qSOFA | <0.0001 | |||
| 0 | 311 (31) | 81 (21) | 230 (37) | |
| 1 | 560 (55) | 220 (57) | 340 (55) | |
| 2 | 122 (12) | 69 (18) | 53 (8) | |
| 3 | 17 (2) | 16 (4) | 1 (0.2) | |
| Temperature (oC) | 37.0 (36.5–37.4) | 36.9 (36.5–37.1) | 37.0 (36.5–37.5) | <0.0001 |
| Pulse oximetry (%) | 88 (81–93) | 85 (74–92) | 90 (84–93) | 0.009 |
| Respiratory rate (× min) | 22 (20–25) | 23 (20–26) | 22 (20–25) | <0.0001 |
| Systolic blood pressure (mm Hg) | 125 (113–139) | 128 (113–140) | 125 (112–138) | 0.12 |
| Diastolic blood pressure (mm Hg) | 76 (70–84) | 75 (70–84) | 78 (70–84) | 0.01 |
qSOFA, quick Sequential Organ Failure Assessment.