In LBD participants with available PET Aβ status, LBD PET Aβ+ was associated with higher APOE‐RS, but there were no significant differences in AD‐PRSnoAPOE or p‐tau181 between LBD PET Aβ− and LBD PET Aβ+ (see Table 2). This evidence concerns the gene APOE and Alzheimer disease.