NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Publications by Whitney Witt

Contact and additional information for this authorAll NBER papers and publicationsNBER Working Papers only

Working Papers and Chapters

July 2004Benefit Plan Design and Prescription Drug Utilization Among Asthmatics: Do Patient Copayments Matter?
with William H. Crown, Ernst R. Berndt, Onur Baser, Jonathan Maguire, Kenan E. Haver
in Frontiers in Health Policy Research, Volume 7, David M. Cutler and Alan M. Garber, editors
Benefit Plan Design and Prescription Drug Utilization Among Asthmatics: Do Patient Copayments Matter?
with William H. Crown, Ernst R. Berndt, Onur Baser, Jonathan Maguire, Kenan E. Haver
in Frontiers in Health Policy Research, Volume 7, David M. Cutler and Alan M. Garber, editors
November 2003Benefit Plan Design and Prescription Drug Utilization Among Asthmatics: Do Patient Copayments Matter?
with William H. Crown, Ernst R. Berndt, Onur Baser, Stan N. Finkelstein: w10062
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 demog...

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Contact and additional information for this authorAll NBER papers and publicationsNBER Working Papers only

 
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