. Author manuscript; available in PMC: 2017 Oct 1.

Published in final edited form as: J Aging Health. 2016 Jul 9;29(3):367–388. doi: 10.1177/0898264316635587

Table 4.

Hierarchical Regression Models for Depressive Symptoms, Cognition, and Functional Performance

Variables	Model 1			Model 2			Model 3

	β	R²	t	β	R²	t	β	R²	t
Age	.374		11.939^**	.376		12.014^**	.266		8.829^*
Sex	.145		4.584^**	.153		4.798^**	.125		4.265^**
Education	−.179		−5.667^**	−.171		−5.360^**	−.078		−2.574^**
CES-D⁺				.063		1.960^*	.000		−.004
Executive Function Composite⁺							.392		12.474^**
R²		.18			.19			.32
ΔR²					.01			.13

Age	.374		12.209^**	.376		12.286^**	.188		6.228^*
Sex	.145		4.688^**	.153		4.907^**	.085		3.025^**
Education	−.179		−5.795^**	−.171		−5.482^**	−.038		−1.314
CES-D⁺				.063		2.005^*	−.027		−.930
Speed of Processing Composite							−.476		−14.776^**
R²		.18			.19			.35
ΔR²					.01			.16

Age	.374		12.209^**	.376		12.286^**	.309		10.403^**
Sex	.145		4.688^**	.153		4.907^**	.104		3.477^**
Education	−.179		−5.795^**	−.171		−5.482^**	−.089		−2.928^**
CES-D⁺				.063		2.005^*	.004		.141
Memory Composite							−.320		−10.160^**
R²		.18			.19			.28
ΔR²					.01			.09

Note: CES-D = Center for Epidemiologic Studies Depression Scale;

⁺

Lower scores reflect better performance; Executive function, speed of processing, and memory composite scores derived from factor analyses

p ≤ .05,

^**

p < .001