Table 3.
Epoch effects from likelihood ratio test.
| Variable | Chi-squared | p |
|---|---|---|
| paO2 | 171 | <0.001 |
| pCO2 | 5.63 | 0.131 |
| SpO2 | 64.8 | <0.001 |
| LPR | 9.28 | 0.026 |
| pbrO2 | 44.6 | <0.001 |
| Vmca | 8.31 | 0.04 |
| HbDiff | 27.0 | <0.001 |
| HbT | 4.5 | 0.21 |
| oxCCO | 15.1 | 0.002 |
| TOI | 22.3 | <0.001 |
| µs | 1.06 | 0.787 |
HbDiff: haemoglobin concentration difference; HbT: total haemoglobin concentration; LPR: lactate:pyruvate ratio; oxCCO: cytochrome c oxidation state; paO2: arterial pO2; paCO2: arterial pCO2; pbrO2: brain tissue pO2; TOI: tissue oxygenation index; SpO2: arterial oxygen saturation; µs: optical reduced scattering coefficient; Vmca: middle cerebral artery blood flow velocity.