TABLE 3.

Association of the EEG and ERP variables between AD continuum states of CN, aAD and pAD.

Ref: CN group Variables	Unadjusted		Adjustedb
	Odds ratioa (95% CI)	Z; p-value	Odds ratio (95% CI)	Z; p-value
STI (%)	0.74 (0.44, 1.21)	−1.18; 0.237	0.69 (0.40, 1.15)	−1.38; 0.167
MDF (Hz)	0.54 (0.32, 0.87)	−2.45; 0.014	0.58 (0.34, 0.97)	−2.01; 0.044
PPL (ms)	2.35 (1.37, 4.40)	2.92; 0.004	2.36 (1.31, 4.78)	2.65; 0.008

STI, spectrum triangular index; MDF, median frequency; PPL, positive peak latency; CN, cognitive normal; aAD, asymptomatic Alzheimer disease; pAD, mild cognitive impairment with Alzheimer’s pathology.

^aEstimated using proportional odds ordinal logistic regression analysis.

^bAdjusted for sex, age, and education.

The p-value of lower than 0.05 were presented in boldface.