Public reporting of clinical quality data: an update for cardiovascular specialists.

Public reporting of hospital and individual provider quality of care measures is not a new concept. In the United States, the first national public reports of hospital mortality data occurred in 1986, and detailed physician-level data for cardiac surgery are now reported in 4 states. The development of the "Hospital Compare," and more recently, the "Physician Compare" websites has further expanded public reporting for hospitals and providers. Several professional organizations, including the American Medical Association, Society of Thoracic Surgeons, and the American College of Cardiology, have published policy statements articulating key principles to guide the public reporting process. Despite the rapid proliferation of public reporting efforts, more research is needed to better define meaningful measures to report and fully understand the impact of public reporting on healthcare delivery.