Performance and improvement strategies for adapting generative large language models for electronic health record applications: A systematic review

Published: 01 Jan 2026, Last Modified: 04 Nov 2025Int. J. Medical Informatics 2026EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•Only a small portion of studies quantitatively evaluated improvement strategies.•The most assessed performance improvement strategy was fine-tuning.•Few-shot, fine-tuning, and multimodal data integration may degrade the performance.•Fine-tuning a small model can outperform a large model.•Performance biases were only assessed in four studies.
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