. Author manuscript; available in PMC: 2012 Feb 1.

Published in final edited form as: Am J Geriatr Psychiatry. 2011 Feb;19(2):160–168. doi: 10.1097/JGP.0b013e3181e446c8

Table 3.

Results for Mixed Effect Model of DSST. N=350

Effect	Model Parameters^†	SE	DF	t	p
Age at Baseline	−0.4102	0.1034	1, 2018	−3.97	<.0001
Race	−9.5978	1.7744	1, 2018	−5.41	<.0001
Gender	−0.5616	0.9927	1, 2018	−0.57	0.5716
Education	1.1248	0.1019	1, 2018	11.04	<.0001
APOE4	0.3349	1.0654	1, 2018	0.31	0.7533
Psychotic Ever	−1.8555	1.5983	1, 2018	−1.16	0.2458
Time	−1.8790	0.1717	1, 348	−10.95	<.0001
Time * Psychotic Ever	0.6945	0.1899	1, 2018	3.66	0.0003

SE = Standard Error; DF = degrees of freedom; APOE4, Apolipoprotein-ε 4 allele

^†

Model parameters are unstandardized estimates