| Influenza A (n = 325) | Influenza B (n = 328) | COVID-19 (n = 678) |
---|---|---|---|
Gender, n (%) | |||
 Male | 189 (58.2) | 162 (49.4) | 443 (65.1) |
Age (years), median (interquartile range) | 71 (59–81) | 74 (64–83) | 70 (58–78) |
Age categorized (years), n (%) | |||
  < 40 | 29 (9.0) | 20 (6.1) | 19 (2.8) |
 40–60 | 56 (17.2) | 42 (12.8) | 179 (26.3) |
  > 60 | 240 (73.8) | 266 (81.1) | 483 (70.9) |
Presentation, n (%) | |||
 Emergency Department | 292 (89.8) | 272 (82.9) | 613 (90.4) |
 Outpatient clinic | 1 (0.3) | 1 (0.3) | 4 (0.6) |
 Nursing ward | 31 (9.5) | 52 (15.9) | 55 (8.1) |
 Intensive care | 1 (0.3) | 3 (0.9) | 6 (0.9) |