Van Doorslaer (1997) studied income-related inequalities in health in
industrialised countries. The results suggested that although it was not necessarily
true that income-related health inequality was closely related to income inequality,
there does appear to be a correlation between the ill-health concentration indexand the GINI coefficient for disposable equivalent income. However, the correlation
is not perfect. Sweden and the United Kingdom (UK) are interesting outliers. In
contrast to the UK, Sweden shows a lower health inequality than would be expected
if considered on its given income inequality. The study also explored additional
factors that might affect some of the variation in health inequality not explained by
income inequality; however, these variables were jointly insignificant in a regression
explaining cross-country differences in health inequality.