TABLE 3.

Groups that rated highly in zero to four cognitive engagement indices and differences in attention and memory composites and subjective ratings of cognition

			Number of cognitive engagement indices
			0 (N = 117)	1 (N = 463)	2 (N = 723)	3 (N = 452)	4 (N = 109)
	β (SE)	P	EMM (SE)	EMM (SE)	EMM (SE)	EMM (SE)	EMM (SE)
Attention composite	0.042 (0.023)	.069	−0.069 (0.089)	−0.089 (0.048)	0.019 (0.043)	0.036 (0.052)	0.008 (0.096)
Memory composite	0.080 (0.021)	<.001	−0.225 (0.081)	−0.037 (0.044)	0.052 (0.039)	0.091 (0.047)	0.161 (0.087)
CFI total	−0.013 (0.023)	.570	0.031 (0.090)	0.003 (0.048)	−0.063 (0.042)	−0.045 (0.051)	0.023 (0.094)

Notes: A higher EMM indicates better performance on the Attention or Memory composite, and fewer subjective cognitive concerns; beta coefficients are standardized and each model has been adjusted for age (years), sex, ethnicity, score units for depression and anxiety on the Hospital Anxiety and Depression Scale (HADS). Bolded values are statistically significant at P < .05.

Abbreviations: EMM, estimated marginal means; CFI, Cognitive Function Instrument; SE, standard error.