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KMID : 1170320200260040105
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Korean Journal of Health Economics and Policy
2020 Volume.26 No. 4 p.105 ~ p.126
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The Effect of Usual Source of Care on Medication Adherence for Immigrants
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Kang Hee-Jin
Kang Cin-Oo
Cho Hye-Min
Jang Sun-Mee
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Abstract
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Diabetes is a chronic disease that requires continuing medical care and self-management. Diabetes patients with a usual source of care or high medication adherence are less likely to be hospitalized or visited the emergency room or to develop diabetes-related complications. However, Little study has been done on a usual source of care and medication adherence in domestic immigrants with diabetes. Therefore, this study aims to identify a usual source of care and medication adherence in immigrants with diabetes.
We analyzed using the health insurance claim data from 2011 to 2015 and included immigrants enrolled in health insurance. We selected immigrants who had prescriptions at the time of diabetic diagnosis in 2012 and followed them for 3 years. A usual source of care and medication adherence by Medication Possession Ration (MPR) were calculated and high medication adherence was defined by greater than or equal to 80% of MPR. To explore an association between medication adherence and a usual source of care among immigrants, multiple logistic regression was conducted.
For 3 years, 15.6% of the patients visited one medical institution (regular) and 27.2% of the patients visited more than five. The mean MPR for 3-year durations was 64.0%. The MPR decreased by 60% at 24 months. As a result of the analysis of factors influencing medication adherence, the likelihood of becoming a non-adherence group was higher in marriage immigrants than in permanent residents, and higher in patients visited more than five medical institutions compared to one.
As patients who had a usual source of care could further increase the medication adherence, the importance of the usual source of care was confirmed, and it was also applied to domestic immigrants.
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KEYWORD
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Immigrants, Diabetes, Medication Adherence, Usual source of care
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