Timing It Right: Balancing Inpatient Congestion vs. Readmission Risk at Discharge

Pengyi Shi (), Jonathan E. Helm (), Jivan Deglise-Hawkinson () and Julian Pan ()
Additional contact information
Pengyi Shi: Krannert School of Management, Purdue University, West Lafayette, Indiana 47907
Jonathan E. Helm: Kelley School of Business, Indiana University, Bloomington, Indiana 47405
Jivan Deglise-Hawkinson: Lean Care Solutions Corporation Pte. Ltd., Singapore 139959, Singapore
Julian Pan: Lean Care Solutions Corporation Pte. Ltd., Singapore 139959, Singapore

Operations Research, 2021, vol. 69, issue 6, 1842-1865

Abstract: When to discharge a patient plays an important role in hospital patient flow management and the quality of care and patient outcomes. In this work, we develop and implement a data-integrated decision support framework to aid hospitals in managing the delicate balance between readmission risk at discharge and ward congestion. We formulate a large-scale Markov decision process (MDP) that integrates a personalized readmission prediction model to dynamically prescribe both how many and which patients to discharge on each day. Because of patient heterogeneity and the fact that length of stay is not memoryless, the MDP has the curse of dimensionality. We leverage structural properties and an analytical solution for a special cost setting to transform the MDP into a univariate optimization; this leads to a novel, efficient dynamic heuristic. Furthermore, for our decision framework to be implementable in practice, we build a unified prediction model that integrates several statistical methods and provides key inputs to the decision framework; existing off-the-shelf readmission prediction models alone could not adequately parametrize our decision support. Through extensive counterfactual analyses, we demonstrate the value of our discharge decision tool over our partner hospital’s historical discharge behavior. We also obtain generalizable insights by applying the tool to a broad range of hospital types through a high-fidelity simulation. Last, we showcase an implementation of our tool at our partner hospital to demonstrate broader applicability through our framework’s plug-and-play design for integration with general hospital data systems and workflows.

Keywords: readmission risk; inpatient flow management; state-dependent discharge; large-scale Markov decision process (MDP); approximation algorithms; tool implementation (search for similar items in EconPapers)
Date: 2021
References: Add references at CitEc
Citations:

Downloads: (external link)
http://dx.doi.org/10.1287/opre.2020.2044 (application/pdf)

Related works:
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:inm:oropre:v:69:y:2021:i:6:p:1842-1865

Access Statistics for this article

More articles in Operations Research from INFORMS Contact information at EDIRC.
Bibliographic data for series maintained by Chris Asher ().