Table 2A.

Cox-multivariate regression model type-III Wald Chi-square ANOVA summary and hazard ratio estimates for comparing the instantaneous risk of conversion to MCI for the sample of patients who tested in the normal range of cognition according to the Montreal Cognitive Assessment at the initial visit (A, B), and for comparing the instantaneous risk of conversion from MCI to dementia for those who tested with minimal cognitive impairment (MCI) according to the Montreal Cognitive Assessment at the initial visit (C, D). Table 2A lists the Cox multivariate regression model type-III Wald Chi-square ANOVA results for testing the null hypothesis that there is no unique association between the predictor variable and time to conversion to MCI. Table 2B lists the Cox multivariate regression model hazard ratios for comparing the instantaneous risk of conversion to MCI. Table 2C lists the Cox multivariate regression model type-III Wald Chi-square ANOVA results for testing the null hypothesis that there is no unique association between the predictor variable and time to conversion from MCI to dementia. Table 2D lists the Cox multivariate regression model hazard ratios for comparing the instantaneous risk of conversion from MCI to dementia. A-B: Conversion from Normal to MCI

Predictor Variable	Degrees of Freedom	Wald Type III Chi-Square Statistic	p
Nighttime Behavior	1	3.91	0.048
Age at Visit #1	6	791.09	<0.001
Educations	1	153.20	<0.001
NPIweight	1	204.35	<0.001
Race	1	241.65	<0.001
Sex	1	206.67	<0.001
Model	11	1601.60	<0.001