How good are medical and death records for identifying dementia?
Karen C SchliepShinyoung JuNorman L FosterKen R SmithMichael W VarnerTruls ØstbyeJoAnn T TschanzPublished in: Alzheimer's & dementia : the journal of the Alzheimer's Association (2021)
Administrative health data may provide a less accurate method than a research evaluation for identifying individuals with dementing disease, but accuracy is improved by combining health data sources. Assessing all-cause dementia versus a specific cause of dementia such as AD will result in increased sensitivity, but at a cost to specificity.