The association of partial pressures of oxygen and carbon dioxide with neurological outcome after out-of-hospital cardiac arrest: an explorative International Cardiac Arrest Registry 2.0 study

Table 3 Association of PaO₂ and PaCO₂ combinations with poor neurological outcome

Analysis	OR	95% CI	P-Value
Hyperoxemia and hypocapnemia versus PaO₂ and PaCO₂ no-exposure	1.67	0.89–3.14	0.11
PaO₂ no-exposure and hypercapnemia versus PaO₂ and PaCO₂ no-exposure	0.96	0.63–1.48	0.86

OR odds ratio, 95% CI 95% confidence interval, PaO₂ arterial partial pressure of oxygen, PaCO₂ arterial partial pressure of carbon dioxide. Hyperoxemia = PaO₂ > 40 kPa, Hypoxemia = PaO₂ < 8.0 kPa, Hypercapnemia = PaCO₂ > 6.7 kPa, Hypocapnemia = PaCO₂ < 4.0 kPa. PaO₂ no-exposure = 8.0-40 kPa, PaCO₂ no-exposure = 4.0–6.7 kPa

ISSN: 1757-7241