Table 2.

Significant predictors of first residual of cerebral blood flow and O₂ content

Parameter	r2, Direction	P
Age	0.20, ↓	<0.001
Total brain volume	0.12, ↑	0.008
Gray matter volume	0.14, ↑	0.003
Cortical surface area	0.14, ↑	0.003
Cortical thickness	0.02, ∼	0.28
White matter volume	0.02, ∼	0.23
Systolic blood pressure	0.1, ↓	0.01
Diastolic blood pressure	0.12, ↓	0.007
Lactate dehydrogenase	0.17, ↓	0.01

All variables were log-transformed in the analysis.