title: Impact of drug coverage on medical expenditures among the elderly.
abstract: Our study compares expenditures for Medicare covered medical services among enrollees in three State pharmacy assistance programs with spending among low-income residents eligible or near-eligible for, but not enrolled in such State-sponsored programs after controlling for between-group differences in demographic, socioeconomic, health status, and insurance status characteristics. We estimate a two-part model in total and by type of service (inpatient, outpatient, and professional) and chronic condition (hypertension, heart disease, and arthritis). We find that drug coverage has no discernible effect on the use and cost of inpatient services, but is associated with a statistically significant increase in Medicare spending for physician services.
authors.affiliation: Mathematica Policy Research Inc., Cambridge, MA 02139, USA. bgilman@mathematica-mpr.com
authors.forename: Boyd H
authors.initials: BH
authors.lastname: Gilman
authors.forename: Barbara
authors.initials: B
authors.lastname: Gage
authors.forename: Susan
authors.initials: S
authors.lastname: Haber
authors.forename: Sonja
authors.initials: S
authors.lastname: Hoover
authors.forename: Jyoti
authors.initials: J
authors.lastname: Aggarwal
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017047:Cost Sharing / Q000706:statistics & numerical data; D005252:Fees, Pharmaceutical; D005260:Female; D005102:Health Expenditures / Q000706:statistics & numerical data*; D006299:Health Services for the Aged / Q000191:economics*; D006801:Humans; D019458:Insurance Coverage; D008297:Male; D054524:Medicare Part D / Q000191:economics*; D015233:Models, Statistical; D055553:Prescription Drugs / Q000191:economics; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D014481:United States
chemical_list: D055553:Prescription Drugs