Studies using occupational class or education level instead of income as socio-economic indicator find qualitatively similar results, though differences in life expectancy are significantly smaller (Palosuo et al., The TEROKA project aims to develop a knowledge base and tools to promote the attainment of the objective of the Health 2015 public health programme for reducing health inequalities. An analysis of the recent hospital reform in Norway”, in: Andresen and Gronlie (eds.), “