Devis T. Measuring mortality differences by cause of death and social class defined by occupation. Population Trends 1993; 73:

This article examines the use of existing data sources to study mortality trends by cause of death and by social class (as defined by occupation). The strengths and weaknesses of each are discussed, and estimates made for two causes of male mortality ischaemic heart disease and stroke for those aged 45-74 in 1971-75 and 1981-85. For both causes, the decline was more pronounced in Social Classes I and II than for other classes, and for stroke a clear gradient by social class was found in 1981-85 which was not evident earlier. Further work in this area will use alternative measures from routinely collected death registrations.