The Incidence and Prevalence of Diabetes Mellitus and Related Atherosclerotic Complications in Korea: A National Health Insurance Database Study

Abstract

Aims/IntroductionThe incidence and prevalence of type 2 diabetes mellitus (T2DM) and related macrovascular complications in Korea were estimated using the Health Insurance Review and Assessment (HIRA) database from 2007–2011, which covers the claim data of 97.0% of the Korean population.Materials and MethodsT2DM, coronary artery disease (CAD), cerebrovascular disease (CVD), and peripheral artery disease (PAD) were defined according to ICD-10 codes. We used the Healthcare Common Procedure Coding System codes provided by HIRA to identify associated procedures or surgeries. When calculating incidence, we excluded cases with preexisting T2DM within two years before the index year. A Poisson distribution was assumed when calculating 95% confidence intervals for prevalence and incidence rates.ResultsThe prevalence of T2DM in Korean adults aged 20–89 years was 6.1–6.9% and the annual incidence rates of T2DM ranged from 9.5–9.8/1,000 person-year (PY) during the study period. The incidence rates of T2DM in men and women aged 20–49 years showed decreasing patterns from 2009 to 2011 (P<0.001); by contrast, the incidence in subjects aged 70–79 years showed increased patterns from 2009 to 2011 (P<0.001). The incidence rates of CAD and CVD in patients newly diagnosed with T2DM were 18.84/1,000 PY and 11.32/1,000 PY, respectively, in the year of diagnosis. Among newly diagnosed individuals with T2DM who were undergoing treatment for PAD, 14.6% underwent angioplasty for CAD during the same period.ConclusionsOur study measured the national incidences of T2DM, CAD, CVD, and PAD, which are of great concern for public health. We also confirmed the relatively higher risk of CAD and CVD newly detected T2DM patients compared to the general population in Korea.

Diabetes incidence and prevalence in Hong Kong, China during 2006–2014

“…Similarly, our incidence estimates are consistent with those reported elsewhere, such as in the USA and Korea . Standardized incidence in our main analysis stabilized with small declines from 2007 to 2014, again in keeping with patterns seen in the UK, USA, Korea and Denmark .…”

“…This may be partly due to the initial under‐ascertainment of prevalent cases in the earlier years, particularly for the WHO and ADA laboratory criteria that would not have identified well‐controlled diabetes. The slowing rate of increase is consistent with prevalence estimates in other economically developed regions including the USA and Korea .…”

“…The recorded prevalence of diabetes in China has risen by an order of magnitude from < 1% in 1980, to 9.7% in 2007, and to 11.6% in 2010 [2][3][4], and is expected to increase further because 50.1% of Chinese adults meet the American Diabetes Association (ADA) 2010 criteria for pre-diabetes [2]. Although the prevalence of diabetes has continued to rise, studies from the USA, UK, Denmark and Korea have suggested that the incidence rate of diabetes has stabilized in recent years [5][6][7][8][9].…”

Cancer risk in 892 089 patients with psoriasis in Korea: A nationwide population‐based cohort study

“…The NHIS computerized database provides data including all types of claim data as well as registries of rare incurable disease (RID) such as cancer. The database contains demographics, outpatient care history, diagnosis and comorbidities based on International Classification of Disease, 10th Revision (ICD‐10) codes, prescriptions and procedures . This study was approved by the institutional review board of the Korean National Institute for Bioethics Policy (NHIS‐2017‐1‐136).…”

Difference between old and young adults in contribution of β‐cell function and sarcopenia in developing diabetes mellitus

“…Type 2 diabetes mellitus is associated with a risk of atherosclerotic complications including coronary artery disease, cerebrovascular disease and peripheral artery disease, which are of great concern for public health; increasing rates of diabetes in the elderly population could also increase the economic burden. Even though the prevalence and incidence of diabetes in the elderly population has been growing, very few studies have focused on the clinical characteristics of elderly‐onset diabetes mellitus.…”