. Author manuscript; available in PMC: 2020 May 1.

Published in final edited form as: Alzheimers Dement. 2019 Feb 6;15(5):699–708. doi: 10.1016/j.jalz.2018.12.009

Table 1.

Demographic characteristics and APOE ε4 status for each diagnostic group

	ADNI-EMCI (n=178)	ADNI-LMCI (n=158)	NP-EMCI (n=147)	NP-LMCI (n=49)	False Positives (FP; n=140)	Cognitively Normal (CN; n=294)	F or Χ²	p value	Effect size
Age, years, mean (SD)	71.0 (7.3)	72.3 (7.6)	72.0 (7.0)	74.6 (7.4)	70.2 (7.7)	73.0 (6.0)	F=5.34^a	p<.001	$η_{p}^{2} = . 03$
Education, years, mean (SD)	16.1 (2.7)	16.5 (2.6)	15.9 (2.7)	16.6 (2.8)	16.6 (2.6)	16.6 (2.5)	F=2.07	p=.07	$η_{p}^{2} = . 01$
Sex (% male)	57.3%	51.9%	55.8%	61.2%	51.4%	45.6%	Χ²=9.39	p=.09	ϕ_c=.10
% APOE ε4 carriers	45.1%	56.7%	56.6%	59.2%	41.3%	30.1%	Χ²=47.26 ^b	p<.002	ϕ_c=.22

ADNI-EMCI younger than NP-LMCI and CN; FP younger than NP-LMCI and CN.

ADNI-EMCI higher rate of APOE ε4 carriers than CN; ADNI-LMCI higher than CN, FP, and ADNI-EMCI; NP-EMCI higher than CN, FP, and ADNI-EMCI; NP-LMCI higher than CN, FP, and ADNI-EMCI; FP higher than CN.