The United States is rapidly transforming into one of the most racially and ethnically diverse nations in the world. Groups commonly referred to as minorities-including Asian Americans, Pacific Islanders, African Americans, Hispanics, American Indians, and Alaska Natives-are the fastest growing segments of the population and emerging as the nation's majority. Despite the rapid growth of racial and ethnic minority groups, their representation among the nation's health professionals has grown only modestly in the past 25 years. This alarming disparity has prompted the recent creation of initiatives to increase diversity in health professions. In the Nation's Compelling Interest considers the benefits of greater racial and ethnic diversity, and identifies institutional and policy-level mechanisms to garner broad support among health professions leaders, community members, and other key stakeholders to implement these strategies. Assessing the potential benefits of greater racial and ethnic diversity among health professionals will improve the access to and quality of healthcare for all Americans.

Since 1992 the Department of Defense (DOD), through the U.S. Army Medical Research and Material Command, has received congressionally earmarked appropriations for programs of biomedical research on prostate, breast, and ovarian cancer; neurofibromatosis; tuberous sclerosis; and other health problems. Appropriations for these Congressionally Directed Medical Research Programs are used to support peer reviewed extramural research project, training, and infrastructure grants. Congress has become concerned about funding increases for these programs given current demands on the military budget. At the request of Congress, the Institute of Medicine (IOM) examined possibilities of augmenting program funding from alternative sources. The resulting IOM book, Strategies to Leverage Research Funding: Guiding DOD's Peer Reviewed Medical Research Programs, focuses on nonfederal and private sector contributions that could extend the appropriated funds without biasing the peer review project selection process.

Health services research is "the multidisciplinary field of scientific investigation that studies how social factors, financing systems, organizational structures and processes, health technologies, and personal behaviors affect access to health care and the quality and cost of health care." Since the 1960s, health services research has provided the foundation for progress, effectiveness, and value in health care. Ironically, at a time in which appreciation has never been higher for both the need and potential from health services research, the political and financial support for sustenance and growth appear to be weakening. With funding support from AcademyHealth, the American Association of Colleges of Nursing, the American Board of Family Medicine, the American Society of Anesthesiologists, the Association of American Medical Colleges, the Federation of American Hospitals, and the Robert Wood Johnson Foundation, this National Academy of Medicine Special Publication identifies the range of issues that health services research must consider, address, and potentially overcome to transform the field to meet the needs of a 21st-century health care system. These issues are broad, multidisciplinary, and will require a coordinated effort to address?as well as dedicated and sustainable funding. Federal support for health services research has never been more critical. Now is a critical time for the field to articulate its priorities, demonstrate its utility, and transform to meet the needs of a 21st-century health care system. The physical and financial health of the nation is at stake.

Health services research has suffered because of unrealistic expecta- tions of what it could provide in the way of easy answers for policy- makers in the health field. There are no quick fixes for problems of health manpower and distribution or cost containment. This means that it is enourmously important to know much more than we do about the complex variety of factors affecting our health care system if we are to make sensible policy decisions. We need to know what we are talk- ing about, and for this reason the report gives a proper definition of health services research. Health services research is a field and not a discipline and this means that by its very nature it is multi- disciplinary. The report strongly supports the continuation of the national center for health services research without either reorgani- zation or relocation.