• Sanghyun Cho, Ji Yeon Shin, Hyun Joo Kim, Sang Jun Eun, Sungchan Kang, Won Mo Jang, Hyemin Jung, Yoon Kim, and Jin Yong Lee.
• Department of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea.
• J. Korean Med. Sci. 2019 Aug 12; 34 (31): e190e190.

BackgroundAlthough effective care for type 2 diabetes (T2DM) is well known, considerable inadequate care has been still existed. Variations in achievement of the recommended quality indicators inT2DM care among small areas are not well known in Korea. This study examined the quality of care T2DM care and its geographical variations.MethodsWe used the national health insurance database and national health screening database. Seven quality indicators were used to evaluate continuity of care (medication possession ratio), process of care (hemoglobin A1c test, lipid profile, microalbuminuria test, and eye examination), and intermediate outcome (blood pressure control, and low-density lipoprotein control). Crude and age-standardized proportions were calculated for each 252 districts in Korea.ResultsAll quality indicators failed to achieve the recommended level. Only about 3% and 15% of the patients underwent eye examination and microalbuminuria test, respectively. Other indicators ranged from 48% to 68%. Wide variation in the quality existed among districts and indicators. Eye examination and microalbuminuria test varied the most showing tenfold (0.9%-9.2%) and fourfold (6.3%-28.9%) variation by districts, respectively. There were 32.4 and 42.7 percentage point gap between the best and the worst districts in hemoglobin A1c test and blood pressure control, respectively.ConclusionConsiderable proportion of T2DM patients were not adequately managed and quality of care varied substantially district to district. To improve the quality of diabetes care, it is necessary to identify the poor performance areas and establish a well-coordinated care system tailored to the need of the district.© 2019 The Korean Academy of Medical Sciences.

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