National Trends in the Prevalence of Unmet Health Care and Dental Care Needs During the COVID-19 Pandemic: Longitudinal Study in South Korea, 2009-2022

Yeji Kim   ^{1 *} , MD ;   Soeun Kim   ^{2, 3 *} , MSc ;   Somin Lee   ¹ , MD ;   Jaeyu Park   ^{2, 4} , MSc ;   Ai Koyanagi   ⁵ , MD, PhD ;   Lee Smith   ⁶ , PhD ;   Min Seo Kim   ⁷ , MD, PhD ;   Guillaume Fond   ⁸ , MD, PhD ;   Laurent Boyer   ⁸ , MD, PhD ;   Guillermo Felipe López Sánchez   ⁹ , PhD ;   Elena Dragioti   ¹⁰ , PhD ;   Hyeon Jin Kim   ^{2, 4} , MSc ;   Hayeon Lee   ² , PhD ;   Yejun Son   ^{2, 3} , MSc ;   Minji Kim   ^{2, 4} , MSc ;   Sunyoung Kim   ^{2, 11} , MD, PhD ;   Dong Keon Yon   ^{1, 2, 3, 4, 12} , MD, PhD

¹ Department of Medicine, Kyung Hee University College of Medicine, Seoul, Republic of Korea

² Center for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, Republic of Korea

³ Department of Precision Medicine, Kyung Hee University College of Medicine, Seoul, Republic of Korea

⁴ Department of Regulatory Science, Kyung Hee University, Seoul, Republic of Korea

⁵ Research and Development Unit, Parc Sanitari Sant Joan de Deu, Barcelona, Spain

⁶ Centre for Health, Performance and Wellbeing, Anglia Ruskin University, Cambridge, United Kingdom

⁷ Medical and Population Genetics and Cardiovascular Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, United States

⁸ Research Centre on Health Services and Quality of Life, Assistance Publique-Hôpitaux de Marseille, Aix Marseille University, Marseille, France

⁹ Division of Preventive Medicine and Public Health, Department of Public Health Sciences, School of Medicine, University of Murcia, Murcia, Spain

¹⁰ Research Laboratory Psychology of Patients, Families, and Health Professionals, Department of Nursing, School of Health Sciences, University of Ioannina, Ioannina, Greece

¹¹ Department of Family Medicine, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, Republic of Korea

¹² Department of Pediatrics, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, Republic of Korea

*these authors contributed equally