Clinical outcomes for the whole study population and stratified according to both age and comorbidity class
| All | Patients by age years | |||||||
| 21–40 | 41–50 | 51–60 | 61–70 | 71–80 | 81–90 | 91–100 | ||
| Overall | ||||||||
| Patients | 670 (100) | 19 (2.8) | 46 (6.8) | 106 (15.8) | 176 (26.3) | 195 (29.1) | 112 (16.7) | 16 (2.3) |
| Died at 30 days | 180 (26.9) | 0 (0) | 7 (15.2) | 6 (5.7) | 31 (17.6) | 71 (36.4) | 55 (49.1) | 10 (62.3) |
| ETI | 178 (26.6) | 7 (36.8) | 12 (26.1) | 36 (34) | 65 (36.9) | 48 (24.6) | 10 (8.9) | 0 (0) |
| Length of hospital stay days | 20.3±13.3 | 16.8±9.1 | 19.1±10 | 20.6±11.6 | 22.7±14.7 | 21±14.1 | 16.6±12.4 | 13.7±7.2 |
| Patients with ≤2 comorbidities# | ||||||||
| Patients | 423 | 19 (4.5) | 33 (7.8) | 75 (17.7) | 113 (26.7) | 118 (27.9) | 58 (13.7) | 7 (1.7) |
| Died at 30 days | 83 (19.6) | 0 (0) | 5 (15.2) | 6 (8.0) | 18 (15.9) | 40 (33.9) | 12 (20.7) | 2 (28.6) |
| ETI | 123 (29.1) | 7 (36.8) | 8 (24.2) | 29 (38.7) | 46 (40.7) | 27 (22.9) | 6 (10.3) | 0 (0) |
| Length of hospital stay days | 21.9±15 | 16.8±9.1 | 19.9±11.1 | 21.5±12.4 | 24.3±15.6 | 21.8±14.7 | 15.8±11.3 | 20.3±5.9 |
| Patients with >2 comorbidities# | ||||||||
| Patients | 122 | 0 (0) | 4 (3.3) | 13 (10.7) | 33 (27.0) | 47 (38.5) | 23 (18.9) | 2 (1.6) |
| Died at 30 days | 42 (34.4) | 2 (50.0) | 0 (0) | 10 (30.3) | 18 (38.3) | 11 (47.8) | 1 (50.0) | |
| ETI | 25 (20.4) | 1 (25.0) | 3 (23.1) | 14 (42.4) | 6 (12.7) | 1 (4.4) | 0 (0) | |
| Length of hospital stay days | 22.1±15.6 | 21.7±8.8 | 21.2±10.9 | 23.1±16.1 | 21.3±14.7 | 23.3±10.8 | 21.5±7.8 | |
Data are presented as n (%), mean±sd, or n. ETI: endotracheal intubation. #: comorbidity status for those with outcome data was available for 545 patients.