Journal article

The impact of Medicare part D on income-related inequality in pharmaceutical expenditure

Natalie Carvalho, Dennis Petrie, Linkun Chen, Joshua A Salomon, Philip Clarke

International Journal for Equity in Health | BMC | Published : 2019

Abstract

BACKGROUND: Income-related inequality measures such as the concentration index are often used to describe the unequal distribution of health, health care access, or expenditure in a single measure. This study demonstrates the use of such measures to evaluate the distributional impact of changes in health insurance coverage. We use the example of Medicare Part D in the United States, which increased access to prescription medications for Medicare beneficiaries from 2006. METHODS: Using pooled cross-sectional samples from the Medical Expenditure Panel Survey for 1997-2011, we estimated income-related inequality in drug expenditures over time using the concentration and generalised concentratio..

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Grants

Awarded by Centre of Excellence in Population Ageing Research, Australian Research Council


Awarded by National Institute of Diabetes and Digestive and Kidney Diseases


Funding Acknowledgements

This work was partly supported by the Centre of Excellence in Population Ageing Research, Australian Research Council (CE170100005 awarded to Prof. Philip M Clarke) and the National Institute of Diabetes and Digestive and Kidney Diseases (Grant No. 1R01 DK090435). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.