• Maria de Jesus Diaz-Perez, Rita Hanover, Emilie Sites, Doug Rupp, Jim Courtemanche, and Emily Levi.
• Network for Regional Healthcare Improvement, 500 Southborough Dr, Ste 106, South Portland, ME 04106. Email: elevi@nrhi.org.
• Am J Manag Care. 2019 May 1; 25 (5): e138-e144.

ObjectivesTo describe how all-payer claims databases (APCDs) can be used for multistate analysis, evaluating the feasibility of overcoming the common barrier of a lack of standardization across data sets to produce comparable cost and quality results for 4 states. This study is part of a larger project to better understand the cost and quality of healthcare services across delivery organizations.Study DesignDescriptive account of the process followed to produce healthcare quality and cost measures across and within 4 regional APCDs.MethodsPartners from Colorado, Massachusetts, Oregon, and Utah standardized the calculations for a set of cost and quality measures using 2014 commercial claims data collected in each state. This work required a detailed understanding of the data sets, collaborative relationships with each other and local partners, and broad standardization. Partners standardized rules for including payers, data set elements, measure specifications, SAS code, and adjustments for population differences in age and gender.ResultsThis study resulted in the development of a Uniform Data Structure file format that can be scaled across populations, measures, and research dimensions to provide a consistent method to produce comparable findings.ConclusionsThis study demonstrates the feasibility of using state-based claims data sets and standardized processes to develop comparable healthcare performance measures that inform state, regional, and organizational healthcare policy.

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