Designing and using case mix indices.
Any assessment of clinical care in which provider performances will be compared to norms requires adjusting for differences among patient populations. Basic issues that must be addressed include: (1) specification of the population that will be adjusted for case mix; (2) selection, definition, and weighting of factors that will be used to determine case mix; (3) validation of the proposed case mix indices; and (4) application of indices to samples of interest. The authors consider each of these issues, using illustrations from the Greater Cleveland Health Quality Choice Project and other outcomes monitoring projects.
Department of Cardiology, University of Chicago.
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D003625:Data Collection; D003953:Diagnosis-Related Groups / Q000145:classification*; D006302:Health Services Research / Q000379:methods*; D008329:Managed Care Programs / Q000706:statistics & numerical data*; D018579:Patient Selection; D015203:Reproducibility of Results; D012107:Research Design; D012307:Risk Factors; D014481:United States