1. BigData Strategy Department, National Health Insurance Service, Wonju, Korea.
2. HIRA Research Institute, Health Insurance Review and Assessment Service, Wonju, Korea.
3. Department of Public Health, Graduate School, College of Medicine, Yonsei University, Seoul, Korea.
4. Division of Cancer Control & Policy, National Cancer Control Institute, National Cancer Center, Goyang, Korea.
5. Division of Endocrinology, Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
6. Department of Research and Analysis, National Health Insurance Service Ilsan Hospital, Goyang, Korea.