Demographic characteristics of the 85,109 individuals that met criteria described above and formed the study population, including age of first diagnosis of dementia or when first started on the dementia‐related medication (i.e., age at event), current age of participants, total number and proportion of APOE4 gene dose groups further stratified by ethnorace, sex, and total number of all‐type dementia cases and controls, are shown in Table 1. Here, APOE is linked to dementia.