• Jun Wu, Mary Lynn Davis-Ajami, and Virginia Noxon.
• J Am Pharm Assoc (2003). 2015 Jan 1; 55 (1): 41-51.

ObjectivesTo identify socioeconomic factors associated with mail-service pharmacy use and compare the differences in disease-specific prescription medication and medical utilization expenses in a nationally representative sample of adults with diabetes.DesignA retrospective, longitudinal, cross-sectional study.SettingUnited States in 2006-11.ParticipantsMedical Expenditure Panel Survey household component (MEPS-HC) participants aged 18 years or older diagnosed with diabetes and prescribed antidiabetic medications.Main Outcome MeasuresLikelihood of mail-service pharmacy use, diabetes-related medical utilization, and medication expenses.ResultsAmong 4,430 eligible participants identified in the 2006-11 surveys, representing more than 83 million U.S. individuals, nearly 13% of the participants obtained two-thirds or more of their antidiabetic medications via mail service predominantly. Mail-service pharmacy users were older, had high school or college degrees, had higher incomes, and were more likely to be covered by private insurance. There were no significant differences in diabetes-related medical utilization and drug expenses between the two groups.ConclusionBesides pharmacy benefit design, sociodemographic and economic factors influenced drug dispensing channel use (mail service versus community pharmacy). No significant differences in diabetes-related drug and medical expenses between mail-service and community pharmacy users were observed.

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