Table 1.

Model Estimates by Activity Category

	Physical activities		Social activities		Self-care activities		Passive info processing		Novel info processing
Outcome	Estimate (SE)	p	Estimate (SE)	p	Estimate (SE)	p	Estimate (SE)	p	Estimate (SE)	p
Fixed effects
Intercept	0.16 (0.003)	<.001	0.20 (0.004)	<.001	0.24 (0.004)	<.001	0.20 (0.003)	<.001	0.20 (0.004)	<.001
Gender	−0.03 (0.003)	<.001	−0.004 (0.004)	.34	0.01(0.004)	.05	0.01 (0.004)	<.01	0.02 (0.004)	<.001
Education	0.0001 (0.001)	.80	0.001 (0.001)	.09	−0.003 (0.00)	<.001	−0.004 (0.00)	<.001	0.001 (0.00)	<.001
Baseline age	−0.0004 (0.0002)	.1	−0.000 (0.0002)	.9	0.001 (0.00)	<.01	−0.0005 (0.0002)	.02	0.0002 (0.0002)	.52
Time	−0.002 (0.001)	.08	0.0004 (0.001)	.78	0.003 0.001)	.01	0.003 (0.001)	.02	−0.005 (0.001)	<.001
Caregiver status	−0.007 (0.003)	.04	0.004 (0.004)	.24	0.005 (0.004)	.16	0.0005 (0.003)	.87	−0.004 (0.004)	.31
Time × Baseline age	−0.0003 (0.00)	.01	0.00 (0.00)	.94	−0.00 (0.00)	.66	0.0002 (0.00)	.03	0.0001 (0.00)	.32
Time × Caregiver status	0.005 (0.001)	.01	−0.003 (0.002)	.09	−0.00 (0.002)	.83	−0.001 (0.001)	.45	0.001 (0.002)	.73
Random effects
Within person	0.002 (0.00)	<.001	0.002 (0.00)	<.001	0.002 (0.00)	<.001	0.002 (0.00)	<.001	0.002 (0.00)	<.001
Initial status	0.001 (0.00)	<.001	0.001 (0.00)	<.001	0.002 (0.00)	<.001	0.001 (0.0001)	<.001	0.002 (0.00)	<.001
Rate of change	0.0001 (0.00)	<.001	-	-	0.00 (0.00)	.05	0.0001 (0.00)	<.01	-	-
Covariance	−0.00 (0.00)	.26	-	-	0.00 (0.00)	.64	0.00 (0.00)	.21	-	-

Note: Gender, 0 = male 1 = female; Education, 0–17 years; Time, 0–3; Caregiver status, 0 = not caregiving 1 = caregiving for spouse.