Association of Frailty Index at 66 Years of Age with Health Care Costs and Utilization Over 10 Years in Korea: Retrospective Cohort Study

Jieun Jang   ¹ , PhD ;   Anna Kim   ² , PhD ;   Mingee Choi   ³ , PhD ;   Ellen P McCarthy   ^{4, 5} , MPH, PhD ;   Brianne Olivieri-Mui   ⁶ , MPH, PhD ;   Chan Mi Park   ⁵ , MD, MPH ;   Jae-Hyun Kim   ⁷ , PhD ;   Jaeyong Shin   ^{3, 8} , MD, MPH, PhD ;   Dae Hyun Kim   ^{4, 5} , MD, MPH, SCD

¹ Department of Preventive Medicine, College of Medicine, Dongguk University, Gyeongju, United States

² School of Economics, Yonsei University, Seoul, Republic of Korea

³ Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

⁴ Division of Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, Republic of Korea

⁵ Frailty Research Center, Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Harvard Medical School, Boston, MA, United States

⁶ Department of Health Sciences, Bouvé College of Health Sciences, Northeastern University, Boston, MA, United States

⁷ Department of Health Administration, College of Health Science, Dankook University, Cheonan, Republic of Korea

⁸ Department of Policy Analysis and Management, College of Human Ecology, Cornell University, Ithaca, NY, United States