Article

Do Changes in Hospital Outpatient Payments Affect the Setting of Care?

Department of Economics, College of William and Mary, Williamsburg, VA.
Health Services Research (Impact Factor: 2.49). 05/2013; 48(5). DOI: 10.1111/1475-6773.12069
Source: PubMed

ABSTRACT Objective
To examine whether decreases in Medicare outpatient payment rates under the Outpatient Prospective Payment System (OPPS) caused outpatient care to shift toward the inpatient setting. Data Sources/Study SettingHospital inpatient and outpatient discharge files from the Florida Agency for Health Care Administration from 1997 through 2008. Study DesignThis study focuses on inguinal hernia repair surgery, one of the most commonly performed surgical procedures in the United States. We estimate multivariate regressions of inguinal hernia surgery counts in the outpatient setting and in the inpatient setting. The key explanatory variable is the time-varying Medicare payment rate specific to the procedure and hospital. Control variables include time-varying hospital and county characteristics and hospital and year-fixed effects. Principal FindingsOutpatient hernia surgeries fell in response to OPPS-induced rate cuts. The volume of inpatient hernia repair surgeries did not increase in response to reductions in the outpatient reimbursement rate. Conclusions
Potential substitution from the outpatient setting to the inpatient setting does not pose a serious threat to Medicare's efforts to contain hospital outpatient costs.

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