Abstract 14818: Impact of Hospital and Socio-demographic Factors on Utilization of Drug-eluting Stents in Medicare Patients: Bringing Clarity to Disparity

Introduction: Studies perusing role of hospital & sociodemographic factors in disparities in drug eluting stent (DES) usage have shown insurance status to be a major predictor. Hypothesis: Do hospital & sociodemographic factors impact DES utilization in patients with Medicare? Methods: We linked data from the 2011 Medicare Inpatient Discharges (Top 100 DRGs), 2011 Medicare Hospital Referral Region (HRR) Report (to determine racial composition of each HRR) and American Hospital Association (to determine bedsize, location, ownership & teaching status). We analyzed stent DRG codes 249 (Bare Metal Stent without major complications or comorbidities [MCC]), 246 and 247 (DES with and without MCC respectively). HRRs were classified as African American (AA), Hispanic (H), White (W) and combined AA & H dominant areas. Using hospital zipcode household median income was determined from American Community Survey. Univariate & multivariate logistic regression were conducted to determine odds ratios for utilization of D...