Female sex was inconsistently associated with stroke risk , whereas the evidence was inconclusive that either heart failure or coronary artery disease is independently predictive of stroke .
Conclusions : Four clinical features ( prior stroke/TIA , advancing age , hypertension , diabetes ) are consistent independent risk factors for stroke in atrial fibrillation patients .
Background : Absolute stroke rates vary widely among patients with nonvalvular atrial fibrillation .
To balance the benefits and risks of chronic antithrombotic prophylaxis , it is important to estimate the absolute risk of stroke for individual patients .
Stroke incidence and risk factors for stroke in Copenhagen, Denmark.
Stroke incidence in Copenhagen , Denmark was recorded in a r and om population sample of 19,327 persons invited for two health examinations with 5 years ' interval from 1976 to 1983 . Stroke incidence increased exponentially with age . After adjustment to the age and sex distribution of the Danish population in 1980 , the estimated incidence of first stroke was 1.41/1000 women and 2.48/1000 men ; the total incidence was 1.94/1000 population . Risk factor analysis was based on the initial examination of 13,088 persons greater than 35 years old without previous stroke who responded to the first invitation , in whom 295 first strokes were subsequently observed . We used the regression model of Cox . However , our use of this model differs from the somewhat automatic procedures normally used to develop prognostic models . Evaluation of the causative effect of a particular risk factor requires that the direction of mutual influences between the factor in question and other risk factors is established/postulated . Among the 16 potential risk factors for stroke we examined , significant effects were found for age , sex , household income , smoking habits , systolic blood pressure , diabetes , plasma cholesterol concentration , ischemic heart disease , and atrial fibrillation . No significant effect could be demonstrated for a positive family history of stroke , years of school education , marital status , alcohol consumption , daily use of tranquilizers , body mass index , or postmenopausal hormone treatment
Female sex was inconsistently associated with stroke risk , whereas the evidence was inconclusive that either heart failure or coronary artery disease is independently predictive of stroke .
Conclusions : Four clinical features ( prior stroke/TIA , advancing age , hypertension , diabetes ) are consistent independent risk factors for stroke in atrial fibrillation patients .
Background : Absolute stroke rates vary widely among patients with nonvalvular atrial fibrillation .
To balance the benefits and risks of chronic antithrombotic prophylaxis , it is important to estimate the absolute risk of stroke for individual patients .