%0 Journal Article %J Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research %D 2008 %T Modeling the potential impact of a prescription drug copayment increase on the adult asthmatic medicaid population. %A Bae, Seung Jin %A Paltiel, A David %A Fuhlbrigge, Anne L %A Weiss, Scott T %A Kuntz, Karen M %K Adrenal Cortex Hormones %K Adult %K Age Factors %K Anti-Asthmatic Agents %K Asthma %K Cost Sharing %K Drug Prescriptions %K Health Services Accessibility %K Humans %K Insurance, Pharmaceutical Services %K Massachusetts %K Medicaid %K Models, Econometric %K Nebulizers and Vaporizers %K Outcome Assessment (Health Care) %K State Health Plans %K Treatment Refusal %K United States %N 1 %P 110-8 %R 10.1111/j.1524-4733.2010.00763.x %V 11 %X The Commonwealth of Massachusetts increased the copayment for prescription drugs by $1.50 for Medicaid (MassHealth) beneficiaries in 2003. We sought to determine the likely health outcomes and cost shifts attributable to this copayment increase using the example of inhaled corticosteroids (ICS) use among adult asthmatic Medicaid beneficiaries. %8 2008 Jan-Feb