Abstract
Smoking is important for both population health and inequalities in health. There is a growing recognition that its impact on inequalities can be assessed both by standardising smoking rates across socio-economic groups and by assessing the effect of reducing the prevalence of smoking in all groups, so-called relative and absolute approaches. While national level studies (such as census-linkage studies) give vital information on the socio-economic gradient in health they often lack smoking data. Here, small area smoking estimates are linked to a national level longitudinal study to overcome this problem. Results confirm that in relative and especially absolute terms smoking plays an important role in inequalities.
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