TABLE 4.

Interactive Effect of Diagnosis and Aβ on Longitudinal Awareness: High/Low Aβ

	Estimate	SE	df	t	P
High Aβ
Intercept	0.97	0.37	2,303	2.61	0.009a
Baseline age	−0.006	0.005	2,303	−1.32	0.19
Time	0.31	0.15	2,303	2.12	0.03a
Baseline DX	−1.48	0.12	2,303	−12.83	<0.001b
Baseline age:time	−0.005	0.002	2,303	−2.42	0.02a
Time:baseline DX	−0.21	0.05	2,303	−3.91	<0.001b
Low Aβ
Intercept	2.17	0.31	2,247	7.02	<0.001b
Baseline age	−0.02	0.004	2,247	−5.84	<0.001b
Time	0.04	0.09	2,247	0.42	0.68
Baseline DX	−0.63	0.12	2,247	−5.45	<0.001b
Baseline age:time	−0.0006	0.001	2,247	−0.54	0.59
Time:baseline DX	−0.002	0.04	2,247	−0.06	0.96

^ap < 0.05.

^bp < 0.001.

Aβ = beta-amyloid; DX = diagnosis; SE = standard error.