Table 5.
Baseline average arterial and transcutaneous blood gas values
| Mean ± SD | All patients NIV initiation (N = 363) |
All patients LTOT initiation (N = 335) |
All patients NIV + LTOT initiation (N = 117) |
COPD patients NIV initiation (N = 46) |
COPD patients LTOT initiation (N = 169) |
COPD patients NIV + LTOT initiation (N = 56) |
OHS patients NIV initiation (N = 214) |
|---|---|---|---|---|---|---|---|
| ABG PaO2 (kPa) | 8.7 ± 2.3 | 7.2 ± 1.1 | 7.4 ± 1.8 | 7.7 ± 1.5 | 7.2 ± 1.0 | 7.0 ± 1.3 | 8.2 ± 2.0 |
| ABG PaCO2 (kPa) | 7.9 ± 2.6 | 5.3 ± 1.1 | 7.9 ± 2.8 | 8.4 ± 2.5 | 5.4 ± 1.2 | 7.4 ± 1.8 | 8.0 ± 2.4 |
| SpO2% | 86.6 ± 10.2 | 86.2 ± 5.7 | 83.3 ± 13.2 | 86.2 ± 4.6 | 85.9 ± 4.4 | 80.8 ± 20.2 | 83.3 ± 11.2 |
| PtcCO2 (kPa) | 7.1 ± 1.1 | 5.0 ± 1.1 | 7.1 ± 1.2 | 7.2 ± 0.7 | 5.1 ± 0.7 | 7.0 ± 1.1 | 7.3 ± 1.0 |
NIV, non-invasive ventilation; LTOT, long-term oxygen treatment; COPD, chronic obstructive pulmonary disease; ABG, arterial blood gas test; PaO2, partial pressure of arterial blood oxygen; PaCO2, partial pressure of arterial blood carbon dioxide; kPa, kilopascal; SpO2, oxygen saturation; PtcCO2, transcutaneous partial pressure of carbon dioxide