Medical decision making : an international journal of the Society for Medical Decision Making
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The Centers for Medicare and Medicaid Services (CMS) report quality of care for patients hospitalized with acute myocardial infarction (AMI), congestive heart failure (CHF), and community-acquired pneumonia (CAP) with the intention of rewarding superior performing hospitals. The aim of the study was to compare identification of superior hospitals for providing financial rewards using 2 different scoring systems: a latent score that weights individual clinical performance measures according to how well each discriminated hospital quality and a raw sum score (the system adopted by CMS). ⋯ Neither the AMI raw sum score nor latent score discriminates hospital quality due to ceiling effects. Current methods for aggregating measures result in different hospital superior designations than those based on the latent score. Organizations that financially reward hospitals on the basis of such scores need to assess predictive validity of scores and determine a minimum level of classification accuracy.
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The Institute of Medicine report "Crossing the Quality Chasm'' encourages physicians to tailor their approaches to care according to each patient's individual preferences for participation in decision making. How physicians should determine these preferences is unclear. ⋯ Patient preferences for participation in decision making cannot be reliably judged during routine visits based on judgments of patient communication behaviors. Engaging patients in a discussion of preferences for decision making may be the best way to determine the role each wants to play in any given decision.