Health Life

AI model could help patients predict disease risk with electronic health records

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Electronic health records contain critical information for both medical providers and patients. But these records also contain information that could interfere with an artificial intelligence algorithm’s ability to predict patients’ risk for future disease.

Researchers at the College of Information Sciences and Technology are aiming to eliminate some of this noise—or unnecessary data—through a new machine learning model. Called LSAN, the uses a two-pronged approach to scan electronic health record data and identify information that could predict the patient’s risk for developing a target in the future.

“Say we want to predict whether a patient will suffer from diabetes in the future,” said Ma. “We will use the patient’s historical data, which in some ways may be related to diabetes, such as or heart failure, and those are risk factors for the target disease.”

He continued, “But there are also some unrelated diagnosis codes or symptoms, and that noise information for the patient is what we want the model to remove and will give them a lower weight.”

Electronic health records use a two-level to capture the medical journey of a patient using International Classification of Diseases (ICD) codes. The hierarchy begins with the patient, followed by the chronological sequence of visits. Then within each visit, ICD codes are stored with the recorded symptoms for that visit.

LSAN, which stands for “Long-term Dependencies and Short-term Correlations with Hierarchical Attention Network for Risk Prediction,” uses a hierarchical attention module (HAM) to highlight the ranked order of electronic health record data and give different weights to the ICD codes according to their relevance to a target disease. Then, a temporal aggregation module (TAM) analyzes long-term dependencies, such as how each visit relates to others in a patient’s complete medical