Consumer information needs in a competitive health care environment.

The role of information in facilitating choice in a competitive health care marketplace is clearly pivotal, but it is also complex and occasionally problematic. Although it is clear that information is critical to the competitive approach, less clear is the relationship between the availability of appropriate information and the exercise of informed choice, a relationship that is obscured in the tangle of influences that affect the use and delivery of medical care. Nonetheless, the centralized and standardized collection, review, and dissemination of relevant health care data remain the keys to predicting--and avoiding--adverse outcomes in the development of health care policy.