only marginally significantp = 0.077
Last, the executive domain declined significantly faster in APOE ε4 carriers than APOE ε3 homozygotes when adjusting for age, sex, and education (model 1, p = 0.028); however, this difference was only marginally significant when further adjusting by the CERAD NP score and Braak NFT stage (model 2, p = 0.077, 95% CI [−0.041 to 0.002]) and lost statistical significance when further adjusting by comorbid pathologies and the effect of ADNC on the slope (model 3, p = 0.135, 95% CI [−0.041 to 0.006]) likely due to insufficient power and the compounding effect of comorbid pathologies on executive function.