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. Author manuscript; available in PMC: 2023 Sep 12.

Published in final edited form as: Clin Neuropsychol. 2021 Jul 5;36(2):327–352. doi: 10.1080/13854046.2021.1940299

Table 3.

T-tests and Chi Squares Among Study Variables and Conversion to Alzheimer’s Disease (AD)

Men (N=1744)
	% Diagnosed with AD		Statistic
Race	Black	White	χ²(1, 1337) =2.44, p=.12
Race	31.5%	30.9%	χ²(1, 1337) =2.44, p=.12
APOE e4 allele	Absent	Present	χ²(1, 1251) =46.90, p<.001
APOE e4 allele	23.2%	41.6%	χ²(1, 1251) =46.90, p<.001
Hypertension	Absent	Present	χ²(1, 1337) =1.25, p=.26
Hypertension	29.1%	32.0%	χ²(1, 1337) =1.25, p=.26
Diabetes	Absent	Present	χ²(1,1337) =4.12, p=.04
Diabetes	29.8%	37.1%	χ²(1,1337) =4.12, p=.04
Referral Source	Non-professional	Professional	χ²(1,1337) =88.62, p<.001
Referral Source	22.3%	47.3%	χ²(1,1337) =88.62, p<.001
Years of Education	No AD M=16.76, SD=4.82	AD M=16.65, SD=7.69	t(1335)=.32, p=.75
Women (N=2592)
	Descriptive Data		t(1335)=.32, p=.75	Statistic
Race	Black	White	χ²(1, 2367) =1.45, p=.23
Race	18.6%	21.3%	χ²(1, 2367) =1.45, p=.23
APOE e4 allele	Absent	Present	χ²(1, 2200) =61.34, p<.001
APOE e4 allele	15.5%	29.7%	χ²(1, 2200) =61.34, p<.001
Hypertension	Absent	Present	χ²(1, 2367) =23.24, p<.001
Hypertension	16%	24.2%	χ²(1, 2367) =23.24, p<.001
Diabetes	Absent	Present	χ²(1, 2367) =.30, p=.58
Diabetes	20.7%	22.1%	χ²(1, 2367) =.30, p=.58
Referral Source	Professional	Non-professional	χ²(1, 2367) =73.19, p<.001
Referral Source	16.7%	33.2%	χ²(1, 2367) =73.19, p<.001
Years of Education	No AD M=15.95, SD=5.84	AD M=15.44, SD=7.16	t(2365)=1.63, p=.10