Table 2.

Multiple Linear Regressions of Early-Life Activities and Covariates on Intracranial Volume–Adjusted Hippocampal Volume (N = 90)

	Model 1			Model 2			Model 3
Characteristics	B	SE	p	B	SE	p	B	SE	p
Age	−35.35	12.03	.004	−35.35	12.10	.004	−31.45	11.83	.009
Sex (ref. = male)
Female	82.37	164.57	.618	81.96	166.77	.624	56.71	162.03	.727
Education	−22.26	27.56	.421	−22.38	28.34	.432	−30.69	27.68	.271
Late-life activities				0.47	23.28	.984	−1.96	22.59	.931
Early-life activities	57.21	46.14	.218	57.00	47.56	.234	278.87	99.49	.006
EELA × Sex							−271.36	107.82	.014
ΔR2				.00			.07
R 2	.12			.12			.19

Note: EELA = enriching early-life activity. Unstandardized beta coefficients presented. All models adjusted for age, sex, and education. Model 2 further adjusted for late-life activities. Model 3 includes the EELA by sex interaction term.