Association Between Ursodeoxycholic Acid and Clinical Outcomes in Patients With COVID-19 Infection: Population-Based Cohort Study

Hyunjun Lee   ^{1 *} , MD ;   Min Gul Kim   ^{2 *} , PhD ;   Sang Woo Yeom   ^{3 *} , MS ;   Sang Jae Noh   ^{4 *} , PhD ;   Cho Yun Jeong   ³ , MS ;   Min Ji Kim   ³ , MS ;   Min Gu Kang   ³ , MS ;   Ji Hoon Ko   ¹ , MD ;   Su Cheol Park   ¹ , MD ;   Hyeok Tae Kweon   ¹ , MD ;   Sang Il Sim   ⁵ , MS ;   Hyun Lee   ⁶ , PhD ;   Yeon Seok You   ¹ , MD ;   Jong Seung Kim   ^{7 *} , MD, PhD

¹ Department of Otorhinolaryngology-Head and Neck Surgery, Jeonbuk National University Medical School, Jeonju, Republic of Korea, Jeonju, Republic of Korea

² Department of Pharmacology, Jeonbuk National University Medical School, Jeonju, Republic of Korea, Jeonju, Republic of Korea

³ Department of Medical Informatics, Jeonbuk National University Medical School, Jeonju, Republic of Korea, Jeonju, Republic of Korea

⁴ Research Institute of Clinical Medicine of Jeonbuk National University—Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea, Jeonju, Republic of Korea

⁵ Big Data Center, Jeonbuk National University Hospital, Jeonju, Republic of Korea

⁶ Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea

⁷ Department of Medical Informatics, Department of Otorhinolaryngology, Jeonbuk National University School of Medicine and Hospital, Jeonju, Republic of Korea

*these authors contributed equally