The effect of prescription drug insurance on the incidence of potentially inappropriate prescribing: evidence from Medicare Part D

Lee, Donghoon, Kim, SangJune and Dugan, Jerome A. (2024) The effect of prescription drug insurance on the incidence of potentially inappropriate prescribing: evidence from Medicare Part D. Health Economics (United Kingdom), 33 (1). 137 - 152. ISSN 1057-9230

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Abstract

The Medicare Part D program has been documented to increase the affordability and accessibility of drugs and improve the quality of prescription drug use; however, less is known about the equity impact of the Part D program on potentially inappropriate prescribing—specifically, incidences of polypharmacy and potentially inappropriate medication (PIM) use based on different racial/ethnic groups. Using a difference in the regression discontinuity design, we found that among Whites, Part D was associated with increases in polypharmacy and “broadly defined” PIM use, while the use of “always avoid” PIM remained unchanged. Conversely, Blacks and Hispanics reported no changes in such drug utilization patterns.

Item Type:	Article
Official URL:	https://onlinelibrary.wiley.com/journal/10991050
Additional Information:	© 2023 The Authors
Divisions:	Health Policy
Subjects:	R Medicine > RA Public aspects of medicine R Medicine > RM Therapeutics. Pharmacology
JEL classification:	I - Health, Education, and Welfare > I1 - Health > I10 - General I - Health, Education, and Welfare > I1 - Health > I18 - Government Policy; Regulation; Public Health
Date Deposited:	08 Jan 2024 10:21
Last Modified:	10 Jan 2024 08:45
URI:	http://eprints.lse.ac.uk/id/eprint/121189

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