Characteristics | median (25 th-75 th) |
---|---|
Age, years | 69 (65 to 77) |
Female sex, number (%) | 10 (42) |
BMI (kg/m2) | 29 (20 to 37) |
Known COPDa, number (%) | 11 (46) |
Other underlying chronic respiratory disease number (%) | 6 (25) |
SAPS II score (at admission) | 30 (25 to 35) |
pH | 7.37 (7.33 to 7.40) |
PCO2, mmHg | 64 (57 to 71) |
Bicarbonate, mmol/L | 38 (33 to 43) |
Previous time on NIV, hours | 18 (12 to 22) |