Table 2.

Interactive Effects of Race and Age on Change in Different Cognitive Functions

Fixed effects	Episodic Memory			Semantic Memory			Working Memory			Perceptual Speed			Visuospatial Ability
	Estimate	SE	p	Estimate	SE	p	Estimate	SE	p	Estimate	SE	p	Estimate	SE	p
Time	−0.050	0.006	<0.001	−0.080	0.007	<0.001	−0.049	0.005	<0.001	−0.093	0.006	<0.001	−0.042	0.005	<0.001
Age	−0.040	0.003	<0.001	−0.034	0.004	<0.001	−0.017	0.004	<0.001	−0.037	0.004	<0.001	−0.015	0.004	<0.001
Male gender	−0.184	0.036	<0.001	−0.074	0.040	0.067	−0.017	0.042	0.694	−0.228	0.047	<0.001	0.201	0.044	<0.001
Education	0.045	0.004	<0.001	0.054	0.005	<0.001	0.061	0.005	<0.001	0.082	0.006	<0.001	0.059	0.005	<0.001
Black race	−0.174	0.031	<0.001	−0.349	0.035	<0.001	−0.299	0.037	<0.001	−0.426	0.040	<0.001	−0.599	0.038	<0.001
Age x time	−0.007	0.001	<0.001	−0.008	0.001	<0.001	−0.004	0.001	<0.001	−0.007	0.001	<0.001	−0.004	0.001	<0.001
Gender x time	−0.006	0.009	0.526	0.006	0.010	0.517	0.003	0.007	0.624	0.001	0.008	0.882	0.003	0.006	0.640
Education x time	−0.003	0.001	0.004	−0.004	0.001	0.001	−0.003	0.001	<0.001	−0.003	0.001	0.003	−0.001	0.001	0.064
Race x time	0.013	0.008	0.109	0.026	0.009	0.003	0.007	0.006	0.277	0.046	0.007	<0.001	0.020	0.006	<0.001
Race x age	0.011	0.005	0.013	0.004	0.005	0.420	0.004	0.005	0.413	−0.006	0.006	0.320	−0.007	0.006	0.222
Race x age x time	0.002	0.001	0.062	0.003	0.001	0.029	0.001	0.001	0.278	0.003	0.001	0.003	0.000	0.001	0.662

Random effects	Variance	Variance	Variance	Variance	Variance
Intercept	0.249	0.304	0.357	0.455	0.382
Slope	0.010	0.012	0.004	0.008	0.002
Error	0.121	0.179	0.162	0.140	0.198

Note. From 5 separate mixed-effects models. SE, standard error