Multi-Institutional Drug Use Patterns in Hospitalized Older Patients: Retrospective Cross-Sectional Study

Chung Chun Lee   ^{1 *} , MS ;   Grace Juyun Kim   ^{2 *} , PharmD, PhD ;   Suhyun Kim   ^{3, 4} , MS ;   Jee Young Hong   ⁵ , MD, PhD ;   Won Min Hwang   ⁶ , MD, PhD ;   Jong-Yeup Kim   ^{1, 7} , MD, PhD ;   Kye Hwa Lee   ^{8, 9} , MD, PhD ;   Kwangsoo Kim   ^{3, 10} , PhD ;   Mingyu Kang   ¹¹ , MD, PhD ;   Ju Han Kim   ¹² , MD, PhD ;   Suehyun Lee   ¹³ , PhD

¹ Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, Republic of Korea

² Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea

³ Department of Transdisciplinary Medicine, Institute of Convergence Medicine with Innovative Technology, Seoul National University Hospital, Seoul, Republic of Korea

⁴ Department of Clinical Medical Sciences, College of Medicine, Seoul National University, Seoul, Republic of Korea

⁵ Department of Preventive Medicine, College of Medicine, Jeonbuk National University, Jeonju, Republic of Korea

⁶ Division of Nephrology, Department of Internal Medicine, College of Medicine, Konyang University, Daejeon, Republic of Korea

⁷ Healthcare Data Science Center, Konyang University Hospital, Daejeon, Republic of Korea

⁸ Department of Information Medicine, Asan Medical Center, Seoul, Republic of Korea

⁹ Department of Biomedical Informatics, College of Medicine, University of Ulsan, Ulsan, Republic of Korea

¹⁰ Department of Medicine, College of Medicine, Seoul National University, Seoul, Republic of Korea

¹¹ Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea

¹² Seoul National University Biomedical Informatics (SNUBI), Division of Biomedical Informatics, College of Medicine, Seoul National University, Seoul, Republic of Korea

¹³ College of IT Convergence, Gachon University, Seongnam-si, Gyeonggi-do, Republic of Korea

*these authors contributed equally