WashU1 GWAS
	
	AGE: AGE at onset for case; Age at last exam for controls
	Gender: 1-Male, 2-Female
	Race: Caucasian 
	cdr: 0 = Normal, 0.5 = Very Mild Dementia, 1 = Mild Dementia, 2 = Moderate Dementia, 3 = Severe Dementia
	APOE: APOE genotype (epsilon) e2, e3 and e4 (22, 23, 24, 33 34, 44, .-Missing/Unknown)
	mmse: Mini Mental State Examination	
		0-17=Severe congitive impairment, 18-23=Mild cognitive impairment, 24-30=No cognitive impairment, .=Unknown