Two-Stage Extraction of Clinical Course Information From Psychiatric Discharge Summaries Using Fine-Tuned Large Language Models: Cross-Validation Study

Chien-Hung Chen   ¹ , PhD ;   Po-Chang Tseng   ² , MD, PhD ;   Hong-Jie Dai   ³ , PhD ;   Chu-Hsien Su   ⁴ , MS ;   Shi-Heng Wang   ⁴ , PhD ;   Yi-Ling Chien   ⁵ , MD, PhD ;   Wei-Lieh Huang   ⁶ , MD, PhD ;   Chi-Shin Wu   ^{4, 6} , MD, PhD ;   Hsin-Hsi Chen   ⁷ , MD, PhD

¹ Graduate Institute of Networking and Multimedia, National Taiwan University, Taipei, Taiwan

² Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom

³ Department of Electrical Engineering, College of Electrical Engineering and Computer Science, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan

⁴ National Center for Geriatrics and Welfare Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan

⁵ Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan

⁶ Department of Psychiatry, National Taiwan University Hospital, Yunlin Branch, Douliu, Taiwan

⁷ Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan