title: The impact of the introduction of premiums into a SCHIP program.
abstract: This paper examines the introduction of premiums into the SCHIP program in Kentucky. Kentucky introduced a $20 monthly premium for SCHIP coverage for children with family incomes between 151 percent and 200 percent of the federal poverty level in December 2003. Administrative data between 2001 and 2004 is used to estimate a Cox proportional hazard model that predicts enrollment duration in this premium-paying category. The results suggest that a premium reduces the length of enrollment, with the impact concentrated in the first three months after the introduction of the premium. Similar results are not found for the non-premium-paying category.
authors.affiliation: Martin School of Public Policy and Administration at the University of Kentucky and the Kentucky Center for Poverty Research and the Institute for Federalism and Intergovernmental Relations, USA.
authors.forename: James
authors.initials: J
authors.lastname: Marton
mesh_terms: D000293:Adolescent; D002648:Child; D002662:Child Health Services / Q000191:economics*; D002675:Child, Preschool; D003669:Deductibles and Coinsurance / Q000191:economics / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D019458:Insurance Coverage / Q000706:statistics & numerical data*; D007629:Kentucky; D008483:Medical Assistance / Q000191:economics*; D016016:Proportional Hazards Models; D013219:State Government; D014481:United States