Impact of Medicare Part D on Racial Disparities in Adherence to Cardiovascular Medications among the Elderly

Mustafa Hussein, Teresa Waters, Cyril F. Chang, James Bailey, Lawrence M. Brown, David K. Solomon

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Medicare Part D improved medication adherence among the elderly, but to date, its effect on disparities in adherence remains unknown. We estimated Part D impact on racial/ethnic disparities in adherence to cardiovascular medications among seniors, using pooled data from the Medical Expenditure Panel Survey (2002-2010) on 14,221 Medicare recipients (65+ years) and 3,456 near-elderly controls (60-64 years). Study sample included White, Black, or Hispanic respondents who used at least one cardiovascular medication. Twelve-month adherence was measured as having an overall proportion of days covered ≥80%. Adherence disparities were defined according to the Institute of Medicine framework. Using difference-in-differences logistic regression, we found Part D to be associated with a 16-percentage-point decrease in the White-Hispanic disparity in overall adherence among seniors, net of the change among controls. Black-White disparities worsened only among men, by 21 percentage points. Increasing access and improving quality of medication use among disadvantaged seniors should remain a policy priority.

Original languageEnglish (US)
Pages (from-to)410-436
Number of pages27
JournalMedical Care Research and Review
Volume73
Issue number4
DOIs
StatePublished - Aug 1 2016

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Medicare Part D
Hispanic Americans
National Academies of Science, Engineering, and Medicine (U.S.) Health and Medicine Division
Medication Adherence
Vulnerable Populations
Health Expenditures
Medicare
Logistic Models
Surveys and Questionnaires
hydroquinone

All Science Journal Classification (ASJC) codes

  • Health Policy

Cite this

Impact of Medicare Part D on Racial Disparities in Adherence to Cardiovascular Medications among the Elderly. / Hussein, Mustafa; Waters, Teresa; Chang, Cyril F.; Bailey, James; Brown, Lawrence M.; Solomon, David K.

In: Medical Care Research and Review, Vol. 73, No. 4, 01.08.2016, p. 410-436.

Research output: Contribution to journalArticle

Hussein, Mustafa ; Waters, Teresa ; Chang, Cyril F. ; Bailey, James ; Brown, Lawrence M. ; Solomon, David K. / Impact of Medicare Part D on Racial Disparities in Adherence to Cardiovascular Medications among the Elderly. In: Medical Care Research and Review. 2016 ; Vol. 73, No. 4. pp. 410-436.
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