This volume brings together information on health care systems and health outcomes on a comparable basis for the United Kingdom as a whole and for its constituent elements. For the first time, many findings and studies previously published in a wide variety of places are drawn together in one volume. In some instances statistics for the United Kingdom as a whole are included, where they only previously appeared for the constituent countries. With the evolution of a European Union public health policy, information for the United Kingdom as a whole is needed. This has led naturally to an assessment of the possibilities and problems of aggregating constituent country data.