“…People of higher socioeconomic status (SES) live longer, enjoy better health and suffer less from disability, while those of lower SES die younger and suffer a greater burden of disease and disability (Dalstra, Kunst, Borrell, Breeze, Cambois, Costa et al, 2005;Huisman, Kunst, Bopp, Borgan, Borrell, Costa et al, 2005;Mackenbach, Kunst, Cavelaars, Groenhof, Geurts, Andersen et al, 1997;Marmot, Bosma, Hemingway, Brunner, & Stansfeld, 1997;Marmot, Rose, Shipley, & Hamilton, 1978;Minkler, Fuller-Thomson, & Guralnik, 2006). In many cases the associations between SES and health outcomes take the form of a gradient -the higher the SES the better the health (Adler, Boyce, Chesney, Cohen, Folkman, Kahn et al, 1994;Marmot, 2006). Many different explanations for socioeconomic gradients in health have been proposed, but the causal pathways through which SES determines health in such an orderly way, are not well established (Adler et al, 1994;Steptoe & Marmot, 2002).…”