eRADAR detects primary care patients at risk of having undiagnosed dementia in two real‐world healthcare systems

Fifty percent of people living with dementia are undiagnosed. The electronic health record (EHR) Risk of Alzheimer’s and Dementia Assessment Rule (eRADAR) was developed to identify older adults at risk of having undiagnosed dementia using routinely collected clinical data. We aimed to externally validate eRADAR in two real‐world healthcare systems, including examining performance over time and by race/ethnicity.