Study objective—To assess whether the increased incidence of myocardial infarction and death associated with smoking, hypertension, hyperlipidaemia and diabetes varies significantly between groups defined in terms of occupation, education and marital status. Setting—Malmö, Sweden. Participants—9351 women, aged 28–55, with a mean follow up of 10.7 years. Main results—Smoking, hypertension (>160/...