Table 1 Demographics, admission parameters, level of organ support, ICU days and ICU mortality for COVID-19, no viral pneumonia and Influenza groups
|  | COVID-19 | ‘No viral’ | Influenza |
|---|---|---|---|
Number of patients | 299 | 173 | 48 |
Age | 57 (16) | 53 (25) | 58 (24) |
Female (%) | 33.8 | 34.7 | 54.2 |
BMI | 28.7 (8.5) | 25.8 (6.3) | 24.5 (5.3) |
Ethnicity: White–British (%) | 83.3 | 90.8 | 91.7 |
Frailty (%) | Â | Â | Â |
Group A | 93.3 | 87.3 | 66.7 |
Group B | 5.4 | 7.5 | 22.9 |
Group C | 1.0 | 2.9 | 6.2 |
Group D | 0.3 | 0.6 | 4.2 |
Severe cardiovascular comorbidity (%) | 1.0 | 0.6 | 0.0 |
Severe respiratory comorbidity (%) | 1.3 | 0.6 | 4.2 |
Primary reason for admission (%) | Â | Â | Â |
Medical | 100 | 50.3 | 100 |
Neurological | 0 | 45.1 | 0 |
Surgical | 0 | 4.6 | 0 |
Admission Apache-II | 14.0 (7.0) | 14.0 (10.0) | 16.5 (9.0) |
Admission P/F ratio | 133.0 (83.0) | 242.5 (163.1) | 133.9 (92.3) |
Time from hospital admission to ICU admission (days) | 0.0 (5.2) | 0.0 (7.2) | 0.0 (3.5) |
Admitted to ICU within 24Â h of hospital admission (%) | 69.2 | 79.8 | 72.9 |
Admitted to ICU within 48Â h of hospital admission (%) | 79.9 | 83.8 | 81.3 |
Requiring basic respiratory support (FM, NIMV) (%) | 51.8 | 13.3 | 75.0 |
Days of basic respiratory support (FM, NIMV) | 1.0 (3.0) | 0.0 (0.0) | 1.0 (2.2) |
Requiring advanced respiratory support (IMV) (%) | 75.9 | 100.0 | 60.4 |
Days of advanced respiratory support (IMV) | 10.0 (19.5) | 5.0 (11.0) | 3.0 (11.5) |
Requiring basic cardiovascular support (%) | 95.3 | 98.8 | 95.8 |
Days of basic cardiovascular support | 12.0 (17.0) | 7.0 (10.0) | 5.5 (9.2) |
Requiring advanced cardiovascular support (%) | 20.4 | 21.4 | 14.6 |
Days of advanced cardiovascular support | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) |
Requiring RRT (%) | 30.4 | 19.1 | 20.8 |
Days of RRT | 0.0 (2.0) | 0.0 (0.0) | 0.0 (0.0) |
Length of ICU stay (median days) | 13 (15.8) | 7.1 (14.4) | 7 (16.0) |
ICU 28-day mortality (%) | 30.8 | 26.0 | 25.0 |
ICU total mortality (%) | 34.8 | 28.3 | 27.1 |