. Author manuscript; available in PMC: 2010 Jul 14.

Published in final edited form as: J Int Neuropsychol Soc. 2009 Dec 4;16(2):233–243. doi: 10.1017/S1355617709991160

Table 4. Multiple Multinomial Logistic Regression Analysis: Minimum Model (N=590).

	Odds Ratios (ORs)^†
	Class 1: Mild	Class 2: Attention/Construction	Class 3: Memory	Class 4: Severe	p-value
Age (yrs)	Ref	0.99	1.07	1.05	<0.001
Education (>15 years (ref), 11-15years, <10years)	.	2.91	2.32	3.42	<0.001
Disease duration (yrs since symptom onset)	.	1.10	1.37	1.43	<0.001
APOE ε4 (alleles)	.	0.26	0.77	0.85	<0.001

^†

Odds ratio is odds of class membership relative to Class 1 associated with a one unit increase (continuous variables) or relative to reference value (categorical variables), adjusted for all other covariates