The Korean National Health Information Database (NHID), which contains nationwide real-world claims data including sociodemographic data, health care utilization data, health screening data, and healthcare provider information, is a powerful resource to test various hypotheses. It is also longitudinal in nature due to the recommended health checkup every 2 years and is appropriate for long-term follow-up study as well as evaluating the relationships between health outcomes and changes in parameters such as lifestyle factors, anthropometric measurements, and laboratory results. However, because these data are not collected for research purposes, precise operational definitions of diseases are required to facilitate big data analysis using the Korean NHID. In this review, we describe the characteristics of the Korean NHID, operational definitions of diseases used for research related to diabetes, and introduce representative research for diabetes-related diseases using the Korean NHID.
Citations
Citations to this article as recorded by
Elevated triglyceride‐glucose index is associated with increased risk of chronic kidney disease and end‐stage renal disease in type 1 diabetes: Nationwide cohort study Rosa Oh, Seohyun Kim, So Hyun Cho, Ji Yoon Kim, Myunghwa Jang, Sang Ho Park, You‐Bin Lee, Sang‐Man Jin, Kyu Yeon Hur, Gyuri Kim, Jae Hyeon Kim Diabetes, Obesity and Metabolism.2026;[Epub] CrossRef
Prevalence, Incidence, and Metabolic Characteristics of Young Adults with Type 2 Diabetes Mellitus in South Korea (2010–2020) Ji Yoon Kim, Jiyoon Lee, Joon Ho Moon, Se Eun Park, Seung-Hyun Ko, Sung Hee Choi, Nam Hoon Kim Diabetes & Metabolism Journal.2025; 49(2): 172. CrossRef
In Reply: Ischemic Stroke, Type 2 Diabetes, Glucose-Lowering Drugs, and Cardiovascular Events Jae Hyun Bae, Jimi Choi, Nam Hoon Kim, Sin Gon Kim Mayo Clinic Proceedings.2025; 100(7): 1255. CrossRef
Physical activity intensity and amount are inversely correlated with the risk of tuberculosis in patients with diabetes Chiwook Chung, Kyu Na Lee, Kyungdo Han, Junhee Park, Dong Wook Shin, Sei Won Lee Scientific Reports.2025;[Epub] CrossRef
Association of temporal MASLD with type 2 diabetes, cardiovascular disease and mortality Eugene Han, Kyung-Do Han, Yong-ho Lee, Kyung-Soo Kim, Sangmo Hong, Jung Hwan Park, Cheol-Young Park Cardiovascular Diabetology.2025;[Epub] CrossRef
Inverse Association Between METS-IR and Lung Cancer Risk: The Role of BMI in a Nationwide Korean Cohort Bo-Kyung Shine, In Hwa Jeong, Minkook Son, Bongjo Kim, Sang Yi Moon, Jong Yoon Lee, Hye Ryeon Kim, Seok Jae Huh Cancers.2025; 17(23): 3727. CrossRef
Differences in cardiovascular disease incidence according to changes in obesity status in young diabetic patients Do Kyeong Song, Yeon-Ah Sung, Young Sun Hong, Min-ho Kim, Hyejin Lee Cardiovascular Diabetology – Endocrinology Reports.2025;[Epub] CrossRef
Glucose tolerance and mortality across 24 cancer types and stages: A K‐CURE Nationwide registry study Kyung‐Hun Sung, Jin Yu, Seyoon Kim, Mee Kyoung Kim, Yong‐Moon Mark Park, Kyungdo Han, Seung‐Hwan Lee Diabetes, Obesity and Metabolism.2025;[Epub] CrossRef