Demographics and clinical characteristics of patients on admission
| Age, years, mean (standard deviation) | 83 (82–84) |
| Sex, n (%) | |
| Male | 120 (53.3) |
| Female | 105 (46.7) |
| Accommodation, n (%) | |
| Own home | 154 (68.4) |
| Sheltered accommodation | 11 (4.9) |
| Residential home | 49 (31.8) |
| Nursing home | 22 (9.8) |
| Clinical presentation, n (%) | |
| Fever >37.6°C | 87 (38.8) |
| Respiratory rate >20 breaths per minute | 95 (42.4) |
| Oxygen saturation <92% | 51 (22.8) |