Table 4.

Regression coefficients for age and corresponding p-values.

Tracts of interest	Model 1			Model 2			Model 3
	β	Std. coefficient	p	β	Std. coefficient	p	β	Std. coefficient	p
Corpus callosum	− 0.0008	− 0.221	< 0.001	− 0.0008	− 0.216	< 0.001	− 0.0005	− 0.139	0.004
Left posterior thalamic radiation	− 0.0013	− 0.322	< 0.001	− 0.0012	− 0.301	< 0.001	− 0.001	− 0.253	< 0.001
Right posterior thalamic radiation	− 0.001	− 0.239	< 0.001	− 0.0009	− 0.225	< 0.001	− 0.0007	− 0.184	< 0.001
Left sagittal stratum	− 0.0007	− 0.188	< 0.001	− 0.0006	− 0.162	< 0.001	− 0.0003	− 0.09	0.058
Right sagittal stratum	− 0.0009	− 0.219	< 0.001	− 0.0007	− 0.190	< 0.001	− 0.0006	− 0.155	0.001
Complete skeleton	− 0.0007	− 0.319	< 0.001	− 0.0007	− 0.305	< 0.001	− 0.0005	− 0.241	< 0.001

Abbreviations: Std. coefficient, standardized coefficient. Model 1 includes group, age, sex and education; Model 2 includes group, age, sex, education, hypertension and smoking status; Model 3 includes group, age, sex, education, hypertension, smoking status and pulse wave velocity. Bold type indicates significant associations. Bonferroni-corrected p-threshold is 0.008.