Benefit Plan Design and Prescription Drug Utilization Among Asthmatics: Do Patient Copayments Matter?
Objective: The ratio of controller to reliever medication use has been proposed as a measure of treatment quality for asthma patients. In this study we examine the effects of plan level mean out-of-pocket asthma medication patient copayments and other features of benefit plan design on the use of controller medications alone, controller and reliever medications (combination therapy), and reliever medications alone. Methods: 1995-2000 MarketScan claims data were used to construct plan-level out-of-pocket copayment and physician/practice prescriber preference variables for asthma medications. Separate multinomial logit models were estimated for patients in fee-for-service (FFS) and non-FFS plans relating benefit plan design features, physician/practice prescribing preferences, patient demographics, patient comorbidities and county-level income variables to patient-level asthma treatment patterns. Results: We find that the controller reliever ratio rose steadily over 1995-2000, along with out-of-pocket payments for asthma medications, which rose more for controllers than for relievers. However, after controlling for other variables, plan level mean out-of-pocket copayments were not found to have a statistically significant influence upon patient-level asthma treatment patterns. On the other hand, physician practice prescribing patterns strongly influenced patient level treatment patterns. Conclusions: There is no strong statistical evidence that higher levels of out-of-pocket copayments for prescription drugs influence asthma treatment patterns. However, physician/practice prescribing preferences influence patient treatment.
|Date of creation:||Nov 2003|
|Date of revision:|
|Publication status:||published as Cutler, David M. and Alan M. Garber (eds.) Frontiers in Health Policy, Vol. 7. Cambridge, MA: MIT Press for the NBER, 2004.|
|Note:||AG HE PE|
|Contact details of provider:|| Postal: |
Web page: http://www.nber.org
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Blomqvist, Ake, 2001. "Does the economics of moral hazard need to be revisited? A comment on the paper by John Nyman," Journal of Health Economics, Elsevier, vol. 20(2), pages 283-288, March.
- Leibowitz, Arleen & Manning, Willard G. & Newhouse, Joseph P., 1985. "The demand for prescription drugs as a function of cost-sharing," Social Science & Medicine, Elsevier, vol. 21(10), pages 1063-1069, January.
- Manning, Willard G. & Marquis, M. Susan, 1996. "Health insurance: The tradeoff between risk pooling and moral hazard," Journal of Health Economics, Elsevier, vol. 15(5), pages 609-639, October.
- Feenberg, Daniel & Skinner, Jonathan, 1994.
"The Risk and Duration of Catastrophic Health Care Expenditures,"
The Review of Economics and Statistics,
MIT Press, vol. 76(4), pages 633-47, November.
- Daniel Feenberg & Jonathan Skinner, 1992. "The Risk and Duration of Catastrophic Health Care Expenditures," NBER Working Papers 4147, National Bureau of Economic Research, Inc.
- P Grootendorst, 1999. "Beneficiary Cost Sharing Under Canadian Provincial Prescription Drug Benefit Programs: History and Assessment," Centre for Health Economics and Policy Analysis Working Paper Series 1999-10, Centre for Health Economics and Policy Analysis (CHEPA), McMaster University, Hamilton, Canada.
- Alan, Sule & Crossley, Thomas F. & Grootendorst, Paul & Veall, Michael R., 2002.
"The effects of drug subsidies on out-of-pocket prescription drug expenditures by seniors: regional evidence from Canada,"
Journal of Health Economics,
Elsevier, vol. 21(5), pages 805-826, September.
- Thomas F. Crossley & Paul Grootendorst & Sule Korkmaz & Michael R. Veall, 2000. "The Effects of Drug Subsidies on Out-of Pocket Prescription Drug Expenditures by Seniors: Regional Evidence from Canada," Quantitative Studies in Economics and Population Research Reports 350, McMaster University.
- Thomas F. Crossley & Paul Grootendorst & Sule Korkmaz & Michael R. Veall, 2000. "The Effects of Drug Subsidies on Out-of Pocket Prescription Drug Expenditures by Seniors: Regional Evidence from Canada," Social and Economic Dimensions of an Aging Population Research Papers 19, McMaster University.
- Thomas F. Crossley & Paul Grootendorst & Sule Kokkmaz & Michael R. Veall, 2000. "The Effects of Drug Subsidies on Out-of-Poket Prescription Drug Expenditures by seniors: regional Evidence from Canada," CEPR Discussion Papers 422, Centre for Economic Policy Research, Research School of Economics, Australian National University.
- Nyman, John A., 1999. "The economics of moral hazard revisited," Journal of Health Economics, Elsevier, vol. 18(6), pages 811-824, December.
- Marquis, M. Susan, 1985. "Cost-sharing and provider choice," Journal of Health Economics, Elsevier, vol. 4(2), pages 137-157, June.
- Manning, Willard G. & Marquis, M. Susan, 2001. "Health insurance: tradeoffs revisited," Journal of Health Economics, Elsevier, vol. 20(2), pages 289-293, March.
- Zeckhauser, Richard, 1970. "Medical insurance: A case study of the tradeoff between risk spreading and appropriate incentives," Journal of Economic Theory, Elsevier, vol. 2(1), pages 10-26, March.
- Francesco Squintani, 1999. "Moral Hazard," Discussion Papers 1269, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:10062. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If references are entirely missing, you can add them using this form.