Public disclosure of information about the quality of health plans, hospitals, and doctors continues to be controversial. The US experience of the past decade suggests that sophisticated quality measures and reporting systems that disclose information on quality have improved the process and outcomes of care in limited ways in some settings, but these eVorts have not led to the "consumer choice" market envisaged. Important reasons for this failure include limited salience of objective measures to consumers, the complexity of the task of interpretation, and insuYcient use of quality results by organised purchasers and insurers to inform contracting and pricing decisions. Nevertheless, public disclosure may motivate quality managers and providers to undertake changes that improve the delivery of care. EVorts to measure and report information about quality should remain public, but may be most eVective if they are targeted to the needs of institutional and individual providers of care. (Quality in Health Care 2001;10:96-103) Keywords: public disclosure; quality of health care; quality improvement
BackgroundSince the first publication of hospital mortality rates in 1986 by the federal agency that administers the US Medicare insurance programme, public disclosure of information about the quality of health plans, hospitals, and doctors has provoked controversy.1 Publicly disclosed performance reports, sometimes called "report cards", are one manifestation of a health care marketplace in which competing providers would measure and report information about the quality of care they oVer.2 According to the proponents of market theory, US employers, who pay a major share of health care costs in the USA, would purchase prepaid comprehensive care through health plans rather than reimbursing providers for each service.3 Employers would use report cards to choose high quality health plans at a reasonable cost. Insured employees would select health plans, hospitals, and doctors using report card information about providers' quality, price, and accessibility. As a result, health plans, hospitals, and doctors with the best performance records