Measuring Depression Severity With Clinical Global Impression–Severity Scale Scores From Clinical Notes Using Large Language Models: Validation Study

Kevin Li   ¹ , MD ;   Ayah Zirikly   ^{2, 3} , PhD ;   Sarah C Collica   ¹ , MD ;   Fernando S Goes   ¹ , MD ;   Congwen Zhao   ⁴ , MS ;   Trang Nguyen   ⁵ , PhD ;   Jane P Gagliardi   ⁶ , MD, MHS ;   Benjamin A Goldstein   ⁴ , PhD ;   Hwanhee Hong   ⁴ , PhD ;   Elizabeth A Stuart   ⁵ , PhD ;   Peter P Zandi   ¹ , PhD

¹ Department of Psychiatry and Behavioral Sciences, School of Medicine, Johns Hopkins University, Baltimore, MD, United States

² Department of Computer Science, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD, United States

³ Department of Computer Science, School of Engineering and Applied Science, George Washington University, Washington, DC, United States

⁴ Department of Biostatistics and Bioinformatics, School of Medicine, Duke University, Durham, NC, United States

⁵ Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States

⁶ Department of Psychiatry and Behavioral Sciences, School of Medicine, Duke University, Durham, NC, United States