An Environmental Scan of Pay for Performance in the Hospital Setting: Final Report


CHERYL L.DAMBERG, MELONY SORBERO, ATEEV MEHROTRA, STEPHANIE TELEKI, SUSAN LOVEJOY, AND LILY BRADLEY 

WR-474-ASPE/CMS

November 2007 

Prepared for the Assistant Secretary for Planning and Evaluation, US Department of Health and Human Services

WORKING PAPER

This product is part of the RAND Health working paper series. RAND working papers are intended to share researchers’ latest findings and to solicit additional peer review. This paper has been peer reviewed but not edited. Unless otherwise indicated, working papers can be quoted and cited without permission of the author, provided the source is clearly referred to as a working paper. RAND’s publications do not necessarily reflect the opinions of its research clients and sponsors.

CONTENTS

PREFACE
TABLES
SUMMARY
ACKNOWLEDGEMENTS
ABBREVIATIONS
INTRODUCTION
   Background
   Development of the Value-Based Purchasing Plan
   Content and Structure of This Report

A REVIEW OF THE EVIDENCE ON HOSPITAL PAY FOR  PERFORMANCE
   Summary of the Empirical Evidence on the Impact of Hospital Pay for Performance
   Theoretical Literature and implications for p4p design
   Limitations in using Economic Theories to Predict Behavioral response
   Conclusions
SUMMARY OF DISCUSSIONS WITH PAY-FOR-PERFORMANCE  PROGRAM SPONSORS
   Methodological Approach
   Findings From Discussions with Program Sponsors
   Critical Lessons Learned
IV. SUMMARY OF DISCUSSIONS WITH HOSPITALS, HOSPITAL ASSOCIATIONS, AND DATA VENDORS
   Methodology
V. SUMMARY OF FINDINGS FROM ENVIRONMENTAL SCAN
APPENDIX A: DESIGN ISSUES EXPLORED AS PART OF THE ENVIRONMENTAL SCAN
APPENDIX B: SUMMARY OF PAY-FOR-PERFORMANCE DESIGN PRINCIPLES
APPENDIX C: INPATIENT HOSPITAL MEASURES
APPENDIX D: LIST OF ORGANIZATIONS PARTICIPATING IN THE ENVIRONMENTAL SCAN
REFERENCES
TABLES
   Table 1: Design Issues Explored with Program Sponsors and Hospitals
   Table 2: Key Terms Used to Search the Literature for Hospital P4P Studies
   Table 3: Summary of Design Features of P4P Programs Contained in Published Evaluation Studies
   Table 4: Summary of Evaluation Studies Examining Hospital P4P Programs
   Table B.1. P4P Principles and Recommendations from Stakeholders
   Table B.2. Summary of P4P Design Principles and Recommendations

PREFACE

In recent years, pay-for-performance (P4P) programs have emerged as a strategy for driving improvements in the quality, safety, and efficiency of delivered health care. In 2005, with passage of the Deficit Reduction Act, Congress mandated that the Secretary of the Department of Health and Human Services (DHHS) develop a plan for value-based purchasing (VBP) for Medicare hospital services. VBP is one strategy for modifying the payment system to incentivize improvements in the quality of care delivered to beneficiaries in the Medicare program. The use of incentives—by paying differentially for performance—is a key component of building a value-driven health care system as called for by the DHHS Secretary’s Four Cornerstones Initiative.

To inform the development of the VBP plan for Medicare hospital services, the Assistant Secretary for Planning and Evaluation (ASPE), in collaboration with the Centers for Medicare & Medicaid Services, contracted with the RAND Corporation to conduct an environmental scan of the hospital P4P landscape. This report presents the results from the environmental scan of P4P and pay-for-reporting (P4R) programs; it also includes a review of the empirical evidence about the impact of these programs, a description of program design features, and a summary of lessons learned from currently operating P4P and P4R programs about the structure of these programs and implementation issues.

This work was sponsored by ASPE under Task Order No. HHSP233200600001T, Contract No. 100-03-0019, for which Susan Bogasky served as the Project Officer.

back to top

SUMMARY

Mounting cost pressures and substantial deficits in the quality of care within the U.S. health care system have led policy makers to consider various reform options.  Pay for performance (P4P) has emerged as a leading reform strategy, in an effort to stimulate improvements in the quality, safety, and efficiency of delivered health care (IOM, 2006).  In 2005, Congress passed the Deficit Reduction Act (DRA, Public Law 109-171, Section 5001(b)), which mandated that the Secretary of the Department of Health and Human Services (DHHS) develop a plan for value-based purchasing (VBP) for Medicare hospital services that would commence in Fiscal Year (FY) 2009.  VBP, which is being applied by payers in both the public and private sectors, includes the use of both financial (e.g., P4P) and non-financial (e.g., transparency of performance scores) incentives to change the behavior of providers and the systems within which they work.

The use of incentives—by paying differentially for performance—and measuring and making quality information transparent are key components of building a value-driven health care system, as called for by the DHHS Secretary Leavitt’s Four Cornerstones Initiative.  In support of this initiative, CMS has taken a number of steps toward using incentives and making quality information transparent, by funding pay-for-performance demonstrations in the hospital, physician, and home health settings, and by implementing pay for reporting (P4R) for hospitals, through the Reporting Hospital Quality Data for Annual Payment Update (RHQDAPU) program, and for physicians through the Physician Quality Reporting Initiative (PQRI). 

back to top

AN ENVIRONMENTAL SCAN OF HOSPITAL PAY FOR PERFORMANCE

The DRA required the Secretary of the DHHS to consider the following design elements when developing the VBP plan: (1) the process for developing, selecting, and modifying measures of quality and efficiency; (2) the reporting, collection, and validation of quality data; (3) the structure, size, and source of value-based payment adjustments; and (4) the disclosure of information on hospital performance.  The CMS Hospital VBP Workgroup was delegated the task of developing the VBP plan for Medicare hospital services.

To inform the development of the VBP plan the Assistant Secretary for Planning and Evaluation (ASPE) and CMS issued a contract to the RAND Corporation to conduct an environmental scan of the hospital P4P landscape.  The environmental scan, conducted between August of 2006 and June of 2007, included:

  1. A review of the literature to assess what is known about the impact of P4P and how various design features influence the effectiveness of these interventions.  The review examined the hospital inpatient and outpatient P4P empirical literature as well as theoretical literature drawn from the economics and management disciplines regarding the use of incentives and behavioral responses; 
  2. Discussions with key informants to provide a picture of the current state-of-the-art in hospital pay for performance program design and to draw upon the experiences and lessons learned from existing P4P and P4R initiatives; and.
  3. A synthesis of the findings from the environmental scan to inform the discussions and design considerations of the CMS VBP Workgroup.


To take advantage of the experimentation going on nationally with respect to P4P program design and implementation, discussions were held with 27 program sponsors, 28 hospitals, 7 hospital associations, 5 data support vendors, and a number of individuals with expertise in rural hospital issues.  The discussions were necessary because this type of descriptive information and this level of detail about program design are not typically contained in peer-reviewed journal articles that summarize the results of P4P interventions. Additionally, many of the demonstration experiments are still in their infancy, and little has been formally documented about the related experiences.  This report summarizes the findings from the environmental scan.

back to top

FINDINGS FROM THE LITERATURE REVIEW

The Empirical Literature on Hospital P4P

As of June 2007, few peer-reviewed studies existed on the use of financial incentives and their impact on quality, patient experience, safety, or the efficient use of resources. While more than 40 hospital-based P4P programs are operating in the U.S., little empirical evidence has emerged from these payment reform experiments to gauge the impact of hospital P4P in meeting programmatic goals or to understand how various design features affect such things as engagement in the program, the likelihood of creating unintended consequences (such as reductions in access to care for more difficult patients), or the distribution of payments to providers.  Few P4P programs are undergoing formal evaluations to assess their impact, and challenges arise in conducting evaluations of real-world applications because the applications generally lack a comparison group that is required to assess the impact of the P4P intervention.

We reviewed the literature between January 1996 and June 2007 and found only nine published studies that address the impact of three separate hospital P4P programs in which formal evaluations have been occurring: 

  1. The Hawaii Medical Service Association (HMSA) P4P program 
  2. The Blue Cross Blue Shield (BCBS) of Michigan Hospital Incentive Program
  3. The Premier Hospital Quality Incentive Demonstration (PHQID).


Of the eight studies examining changes in performance, each one reported improvements over time in at least some of the hospital performance measures or condition-specific composites included in the specific study; however, it is difficult to disentangle the P4P effect from the effect of other quality improvement efforts that were occurring simultaneously. The strongest evidence on the impact of hospital P4P to date has been shown through the Lindenauer (2007) study of the impact of PHQID relative to the Medicare RHQDAPU program.  These studies, while showing a positive effect of P4P, reveal that the additional effects of P4P are somewhat modest relative to public reporting and other quality interventions that are occurring simultaneously.  Improvements in hospital performance have been observed in response to feedback reports (Williams et al., 2005) and public reporting, with a financial incentive for submitting data (Grossbart, 2006; Lindenauer et al., 2007).  One study found improvements in a few performance areas associated with P4P as compared with what was seen for control hospitals participating in voluntary quality improvement activities (Glickman et al., 2007).  It has been argued, however, that in order to accomplish sustained quality improvement, interventions should be multifaceted and focus on different levels of the health care system (Grol et al 2002; Grol and Grimshaw 2003). This suggests that to be most effective, P4P should be partnered with other activities such as public reporting and internal quality improvement activities, that also encourage quality improvement for the same clinical area. 

There is less evidence of the effect of P4P on patient outcomes. One study (Berthiaume et al., 2006) found reduced complication rates for obstetrical and surgical patients in an uncontrolled study, though it was not reported whether those improvements were statistically significant. Glickman et al. (2007) did not find significant differences in inpatient mortality improvement for AMI between PHQID and control hospitals exposed to an AMI quality improvement intervention.. None of the studies evaluating PHQID separately analyzed the other patient outcome measures (for coronary bypass survey and hip and knee replacement surgery) included in the program, so it is not clear whether improvements occurred in these measures.

Most of the published studies have significant methodological limitations. Six of the nine had no controls, which are critical for providing evidence of a link between P4P and performance improvements. This is particularly important given the documented temporal trend toward increasing performance on many hospital quality metrics.  Another important issue to consider is whether the experience of these smaller-scale incentive programs, with the exception of the PHQID, could be generalized to reflect what the effects would be of wholesale national implementation of a hospital P4P program by Medicare. 

back to top

Theoretical Literature and Implications for P4P Design

P4P is common in industries other than health care, and economists and management experts have studied and developed theories on how individuals respond to financial incentives.  The economic and management theories that we reviewed suggest that the way in which P4P incentives are structured, or framed, could influence whether they achieve the desired behavioral response.  Among the key highlights of this literature review:


Program Implementation Challenges

back to top

  The most frequently tracked outcome measures were: