highly significantp < 0.001
There was a statistically highly significant positive linear relationship between age and regional CSFF in the cerebral WM ( p < 0.001) and deep GM ( p < 0.001).
There was a statistically highly significant positive linear relationship between age and regional CSFF in the cerebral WM ( p < 0.001) and deep GM ( p < 0.001).
Overall, the normalized cerebral WM and deep GM volumes exhibited a decreasing trend after the age of approximately 50 years, accompanied by an increase in the size of the lateral ventricles ( Figure 5 ).