Selective-referral and Unobserved Patient Heterogeneity – Bias in the Volume-outcome Relationship

Corinna Hentschker and Roman Mennicken (roman.mennicken@lvr.de)

No 527, Ruhr Economic Papers from RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen

Abstract: This paper examines the causal effect of the experience of a hospital with treating hip fractures (volume) on treatment outcome for patients. A full sample of administrative data from Germany for the year 2007 is used. We apply an instrumental variable approach to eliminate endogeneity concerns due to reverse causality and unobserved patient heterogeneity. As instruments for case volume we use the number of potential patients and the number of further hospitals in the region around every hospital. Our results indicate that after application of an IV regression of volume on outcome, volume significantly increases quality.

Keywords: volume; hospital quality; mortality; instrumental variables (search for similar items in EconPapers)
JEL-codes: I11 I12 I18 (search for similar items in EconPapers)
Date: 2014
New Economics Papers: this item is included in nep-hea
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.econstor.eu/bitstream/10419/104736/1/810646781.pdf (application/pdf)

Related works:
Working Paper: Selective-referral and unobserved patient heterogeneity - Bias in the volume-outcome relationship (2014)
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:zbw:rwirep:527

DOI: 10.4419/86788602

Access Statistics for this paper

More papers in Ruhr Economic Papers from RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen Contact information at EDIRC.
Bibliographic data for series maintained by ZBW - Leibniz Information Centre for Economics (econstor@zbw-workspace.eu).