[On comparison of hospital performance].

BACKGROUND

The motivation to identify the causes of rising health care cost and variations across providers has intensified in all industrialized countries. These countries have an ongoing debate on efficiency and effectiveness in hospital production. In this debate, national and international comparative studies are important.

MATERIAL AND METHODS

There are very few international comparative studies that include Norwegian hospitals. Actually we know very little about how Norwegian hospitals are performing compared to others. This paper gives an introduction to comparative studies and to the DEA model which is often used in such studies and also a multilevel model which is not so common.

RESULTS

A short review is given of a comparative study of Norwegian and North American hospitals. I also discuss the feasibility of comparative studies of hospitals from the Nordic countries, with references to several comparative studies performed in these countries.

INTERPRETATION

Comparative studies are often closely linked to national health politics, policy making and reforms; thus the outcome of such studies is important for the hospitals included. This makes such studies a sensitive field of research. It is important to be aware of the strength and weaknesses of comparative studies and acknowledge their importance beyond the development of new knowledge.