Composite Measures of Health Care Provider Performance: What Works?

Composite measures are a relatively new arrival on the performance measure scene. Many federal, state and private organizations are adopting them for quality monitoring, provider profiling, and pay-for-performance programs. But not all approaches to composite measures are alike. In a new study in the December issue of The Milbank Quarterly, Michael Shwartz from the Boston University Questrom School of Business, and colleagues, highlight the advantages and disadvantages of different approaches to creating composite measures and summarize key issues related to the use of the various measures. They point out that because of the sensitivity of results to the methods used to create composite measures, careful analysis is warranted before deciding to implement a particular method.