Table 1 Clinical characteristics and respiratory parameters in study 1 patients
Characteristics | NIV success | NIV failure | P value |
|---|---|---|---|
number = 10 (62%) | number = 6 (38%) | ||
Age, years | 79 (60 to 84) | 84 (82 to 87) | 0.1 |
Female, number (%) | 3 (30%) | 6 (100%) | Â |
Known COPDa | 7 (70%) | 4 (67%) | Â |
Known heart failurea | 3 (30%) | 4 (67%) | Â |
SAPS II score (at admission) | 41 (34 to 45) | 39 (35 to 43) | 0.9 |
pH | 7.38 (7.35 to 7.41) | 7.31 (7.30 to 7.31) | 0.1 |
PO2/FiO2, mm Hg | 269 (199 to 340) | 340 (300 to 358) | 0.3 |
PCO2, mm Hg | 69 (46 to 70) | 66 (62 to 77) | 0.5 |
Bicarbonates, mmol/L | 38 (29 to 40) | 36 (31 to 41) | 0.5 |
NIV duration prior PSG (hours) | 12 (8 to 18) | 17 (14 to 20) | 0.4 |