• Elham Torabi, Tugba Cayirli, Craig M Froehle, Kenneth J Klassen, Michael Magazine, Denise L White, and Michael J Ward.
• Department of Emergency Medicine, Vanderbilt University Medical Center, 1313 21st Ave S, 703 Oxford House, Nashville, TN 37232. Email: michael.j.ward@vumc.org.
• Am J Manag Care. 2020 Jun 1; 26 (6): e172-e178.

ObjectivesPoorly defined measurement impairs interinstitutional comparison, interpretation of results, and process improvement in health care operations. We sought to develop a unifying framework that could be used by administrators, practitioners, and investigators to help define and document operational performance measures that are comparable and reproducible.Study DesignRetrospective analysis.MethodsHealth care operations and clinical investigators used an iterative process consisting of (1) literature review, (2) expert assessment and collaborative design, and (3) end-user feedback. We sampled the literature from the medical, health systems research, and health care operations (business and engineering) disciplines to assemble a representative sample of studies in which outpatient health care performance metrics were used to describe the primary or secondary outcome of the research.ResultsWe identified 2 primary deficiencies in outpatient performance metric definitions: incompletion and inconsistency. From our review of performance metrics, we propose the FASStR framework for the Focus, Activity, Statistic, Scale type, and Reference dimensions of a performance metric. The FASStR framework is a method by which performance metrics can be developed and examined from a multidimensional perspective to evaluate their comprehensiveness and clarity. The framework was tested and revised in an iterative process with both practitioners and investigators.ConclusionsThe FASStR framework can guide the design, development, and implementation of operational metrics in outpatient health care settings. Further, this framework can assist investigators in the evaluation of the metrics that they are using. Overall, the FASStR framework can result in clearer, more consistent use and evaluation of outpatient performance metrics.

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