Ethnic differences in risk factors for ischemic stroke: a European case-control study.

Background And Purpose: The aim is to estimate the relative risk and population attributable risk (PAR) of risk factors for ischemic stroke by ethnic group.

Methods: In this case-control study, cases of first ischemic stroke were taken from the South London Stroke Register and controls from a cross-sectional prevalence survey covering the same area. PAR was determined for each risk factor by ethnic group.