Demographics and CPAP outcome
| Variable | Value (IQR/%) |
| N | 24 |
| Demographics | |
| Age | 52 (46.5–60) |
| Male sex | 21/24 (88%) |
| Median BMI (kg/m2)* | 31 (27–33.5) |
| Comorbidities | |
| Hypertension | 8/24 (33%) |
| Diabetes | 6/24 (25%) |
| Heart disease | 3/24 (13%) |
| Other | 8/24 (33%) |
| Smoking status | |
| Current | 1/23 (4%) |
| Ex | 4/23 (17%) |
| Never | 18/23 (79%) |
| Respiratory function prior to CPAP | |
| Median FiO2 (%) | 77 (45–100) |
| Median SpO2 on oxygen therapy (%) | 93 (89–95.9) |
| Median RR | 33 (28–40) |
| Median PF ratio (mm† Hg)† | 122 (97–175) |
| CPAP settings (first hour) | |
| Median starting CPAP (cmH2O) | 8.75 (7.5–10) |
| Median starting oxygen on CPAP (L/min) | 9 (6–15) |
| Outcomes | |
| Weaned off CPAP and discharged | 14/24 (58%) |
| Died on CPAP | 1/24 (4%) |
| Intubated | 9/24 (38%) |
| Median time on CPAP (days) | 4.5 (2.5–5.5) |
| Median bed stay (days) | 10.5 (7.5–11.5) |
| Median time to intubation (hours) | 4 (2–9) |
| Died once IMV | 4 (44.5%) |
| Weaned and Recovered once IMV | 5 (55.5%) |
*n=20.
†n=21.
BMI, body mass index; CPAP, continuous positive airway pressure ; IMV, invasive mechanical ventilation.