From: Noninvasive ventilation for severely acidotic patients in respiratory intermediate care units
APE N = 240 | COPD N = 540 | OHS N = 189 | All N = 969 | |||||
---|---|---|---|---|---|---|---|---|
pH | ≤7.25 | >7.25 | ≤7.25 | >7.25 | ≤7.25 | >7.25 | ≤7.25 | >7.25 |
PaO2, mmHg, X (SD) | +2.9 (30) | −2.2 (32) | −4 (33) | −7.6 (36) | −10 (20) | −4.7 (26) | −3.3 (31) | −5.7 (33) |
PaO2/FiO2, X (SD) | −90 (102) | −74 (103) | −66 (112) | −78 (139) | −135 (100) | −72 (97)** | −85 (110) | −75 (123)* |
PaCO2, mmHg, X (SD) | +29 (22) | +13 (16)** | +26 (22) | +17 (15)** | +28 (18) | +15 (14)** | +27 (21) | +16 (15)** |
pH, X (SD) | −0.21 (0.11) | −0.11 (0.07)** | −0.23 (0.08) | −0.12 (0.06)** | −0.22 (0.09) | −0.12 (0.05)** | −0.22 (0.09) | −0.12 (0.06)** |