Key Takeaways: Analysis of longitudinal Veterans Health Administration (VHA) electronic health records (EHRs) shows Alzheimer disease (AD)–related symptoms appear in clinical notes up to 15 years before diagnosis.Keyword-based machine learning models using unstructured clinical notes outperformed models relying only on structured EHR data, predicting AD risk up to 10 years in advance.Early signals included neuropsychiatric […]
