Table 2.

Correlations for age, cognitive domains, and BMs, in the total sample

	1	2	3	4	5	6	7	8	9	10	11	12
Age
Speed	−.54**
Executive	−.21**	.44**
Episodic memory	−.43**	.36**	.31**
Cortical thickness	−.57**	.37**	.2**	.31**
Entorhinal thickness	−.11*	.17**	.10*	.11*	.39**
Parahippocampal thickness	−.21**	.22**	.16**	.21**	.35**	.27**
Hippocampal volume	−.41**	.28**	.21**	.18**	.33**	.3**	.27**
Striatal volume	−.55**	.38**	.24**	.23**	.36**	.18**	.10*	.58**
1. DN	−.29**	.12*	.10	.14*	.26**	.07	.13*	.09	.16**
FPCN	−.17**	.05	.02	.10	.19**	.05	.04	.03	.11*	.31**
FA	−.32**	.30**	.24**	.19**	.27**	.10*	.13*	.32**	.36**	.16*	.14*
WMH burden	.69**	−.39**	−.16**	−.35**	−.46**	−.09*	−.27**	−.27**	−.2**	−.19**	−.16**	−.20*

Abbreviations: BM, brain biomarker; DN, default‐mode network; FA, fractional anisotropy; FPCN, fronto‐parietal control network; WMH, white matter hyperintensity.

^* Significance level < .05.

^** Significance level < .01.