APOE and Alzheimer disease: An additional adjustment of the base model and the full model for APOE ε4 status made only marginal changes to the association (β = 0.11, p = 0.010 and β = 0.11, p = 0.0098, respectively), and an interaction effect of rs3747742 and APOE ε4 onto the AD score could not be detected (p = 0.44).