[Equity in health? Health inequalities, ethics, and theories of distributive justice].

It is well-documented that the socio-economic status has an important influence on health. In all developed countries, health is closely correlated with income, education, and type of employment, as well as with several other social determinants. While data on this socio-economic health gradient have been available for decades, the moral questions surrounding social health inequalities have only recently been addressed within the field of public health ethics. The present article offers a brief overview of relevant data on social health inequalities and on some explanatory models from epidemiology, social medicine and related disciplines. The main part explores three influential normative accounts addressing the issue of health inequalities. Finally, an agenda for future work in the field of public health ethics and health inequalities is sketched, with particular attention to the German context.