It is worth noting that AD refers to those with pathological findings specific to AD (e.g., beta amyloid plaques, tau neurofibrillary tangles), while ADRD is representative of a broader range of dementias that include AD but also other pathologies that also contribute to risk of AD but are not specific to AD (e.g., vascular dementia, lewy body dementia, frontotemporal dementia). This evidence concerns the gene MAPT and Alzheimer disease.