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J Health Med Econ. 2016;2(2). pii: 13. Epub 2016 Feb 25.

The High Cost-related Medication Non-adherence Rate Among Medicare-Medicaid Dual-Eligible Diabetes Patients.

Author information

1
Section of Hospital Medicine, Department of Medicine (J.X.Z., D.O.M.); Department of Economics (D.O.M.); and the Harris School of Public Policy (D.O.M.); The University of Chicago.

Abstract

CONTEXT:

Access barriers to effective medication treatment have been a persistent issue for millions of older Americans despite the establishment of Medicare Part D.

OBJECTIVE:

We aimed to assess the prevalence rate of cost-related medication non-adherence (CRN) and the patterns of CRN behaviors in Medicare-Medicaid dual eligibles with diabetes.

DESIGN SETTING PATIENTS INTERVENTIONS AND MAIN OUTCOME MEASURES:

We used data from the 2011 Medicare Current Beneficiary Survey, a nationally representative sample of Medicare beneficiaries. Multivariate logistic regression analysis was performed to assess CRN rate, controlling for demographics and types of Medicare Part D plans.

RESULTS:

The CRN rate in dual-eligible diabetes patients was 21%, compared to 16% in non-dual-eligible diabetes patients (p<0.01). In 2011, the standardized prevalence rate of CRN in dual-eligible diabetes patients was 21%, of those with CRN 29% reported three or more types of CRN behaviors.

CONCLUSION:

Contrary to the common belief that dual eligibles have better insurance coverage for medication due to the assistance from Medicaid to pay some of the out-of-pocket payments, the CRN rate among dual eligibles is high and patients often report multiple types of CRN behaviors. This demonstrates that cost is a significant access barrier for dual-eligible diabetes patients. More research is needed to improve the insurance benefit design and expand insurance coverage for this high-need, high-cost subpopulation.

KEYWORDS:

dual eligible; medication adherence

PMID:
28795170
PMCID:
PMC5546751

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