Machine Learning Tool Uses EHR Data to Predict Dementia Risk

Jessica Kent | December 18, 2019

Machine Learning Tool Uses EHR Data to Predict Dementia Risk
A machine learning algorithm analyzed EHR data to estimate the risk that a healthy person will receive a dementia diagnosis in the future, a study published in the journal Alzheimer’s and Dementia found.Alzheimer’s currently affects 5.5 million Americans, the researchers noted, and that number is only expected to grow in the coming years. Early detection tools typically require additional data collection, which can be expensive.A team from Massachusetts General Hospital (MGH) developed a machine learning algorithm that would use data already collected during routine clinical care. The tool built a list of clinical terms associated with cognitive symptoms identified by experts. Then, using natural language processing, researchers combed through EHRs looking for those terms, and used those results to estimate patients’ risk of developing dementia

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