Objectives. This study investigated stroke differentials by socioeconomic position in adulthood.Methods. The relation of risk of stroke to deprivation category and social class was assessed among 6955 men and 7992 women who were aged 45 to 64 years and had been screened in 1972 to 1976.Results. A total of 594 men and 677 women had a hospital admission for stroke or died from stroke. There were large differences in stroke by deprivation category or social class. Adjustment for risk factors (smoking, blood pressure, height, respiratory function, body mass index, cholesterol, diabetes, and preexisting heart disease) attenuated these differences.Conclusions. Risk factors for stroke can explain some of the socioeconomic differences in stroke risk. Requests for reprints should be sent to Carole L. Hart, MA, Department of Public Health, University of Glasgow, 1 Lilybank Gardens, Glasgow, Scotland G12 8RZ (e-mail: c.l.hart@udcf.gla.ac.uk).This brief was accepted February 24, 2000.Stroke is a major cause of death, but understanding of stroke epidemiology is less complete than that for coronary heart disease. Although stroke mortality has declined in the West over the past 50 years, it has increased elsewhere, particularly in Eastern Europe.1 In Scotland in 1997, 11% of deaths in men and 15% of deaths in women 65 years and older were caused by stroke.2 Stroke morbidity is a leading cause of disability, so reducing the burden of stroke has implications for quality of life as well as health service planning. 3 Socioeconomic differences in stroke risk have been seen in many countries, 4 but it is not clear whether risk factors can account for these differences. Most previous prospective epidemiologic studies of stroke have been confined to men, so there is greater uncertainty regarding the epidemiology of stroke in women. We present an analysis of stroke risk by 2 measures of socioeconomic position in a large representative prospective cohort study conducted in the west of Scotland. The study included both men and women and assessed a large number of risk factors for stroke. Participants were followed up for stroke deaths and hospital admissions for stroke over a 20-year period.
MethodsThe Renfrew/Paisley general population study was carried out between 1972 and 1976 in the towns of Renfrew and Paisley in Scotland. Eligibility was established through a doorto-door census of all households in the 2 towns. Men and women aged 45 to 64 years were invited to participate. A response rate of nearly 80% was achieved, and 7052 men and 8354 women took part. Details have been reported previously. [5][6][7][8]