Comparison of CPAP-to-IMV and straight-to-IMV groups
| CPAP-to-IMV, n=48 | Straight-to-IMV, n=22 | |
|---|---|---|
| Male, n (%) | 38 (79) | 14 (64) |
| Female, n (%) | 10 (20) | 8 (36) |
| Mean age, years | 59 | 54 |
| Comorbidities, n (%) | ||
| Hypertension | 19 (40) | 10 (45) |
| Diabetes mellitus | 16 (33) | 10 (45) |
| Respiratory disease | 4 (8) | 5 (23) |
| Cardiac disease | 2 (4) | 0 |
| 28-day mortality, n (%)a | 28/47 (60) | 12/20 (60) |
↵aMissing data (one for CPAP-to-IMV; two for straight-to-IMV); CPAP = continuous positive airway pressure; IMV = invasive mechanical ventilation.