The concepts of class, race, and ethnicity figure prominently in healt
h services research in Britain. Occupational class has been employed f
or nearly a century to investigate social inequalities in health and a
ccess to care. More recently, researchers have identified differences
in health status and utilization between ethnic groups. This article e
xamines how these constructs;are defined in Britain and identifies som
e key research associated with them. It also draws attention to the co
nsiderable problems in using class and ethnicity to stratify the popul
ation. The authors conclude that a new approach that directly measures
individuals' material and social resources needs to be developed.