Population-attributable risks for ischemic stroke in a community in South Brazil: a case-control study.

Background: Risk factors for ischemic stroke are mostly known, but it is still unclear in most countries, what are their combined population-attributable risk percent (PAR%). In a case-control study the individual odds ratios (ORs) and the individual and combined PAR%, including risk factors not addressed in previous studies were estimated.

Methods: Cases and controls were selected from patients attending to an emergency department.