Joint effects of atrial fibrillation and prothrombotic genotypes on the risk of ischemic stroke.

Background: Atrial fibrillation (AF) is a major risk factor for ischemic stroke. Whether prothrombotic single nucleotide polymorphisms (SNPs) impact stroke risk in AF is not well known.

Objectives: To investigate the joint effects of five prothrombotic SNPs and AF on ischemic stroke risk.

Atrial fibrillation, venous thromboembolism, ischemic stroke, and all-cause mortality: The Tromsø study.

Background: Atrial fibrillation (AF) is associated with increased risk of ischemic stroke and all-cause mortality. Patients with AF are also at increased risk of venous thromboembolism (VTE), but information on how AF impacts VTE-related mortality is scarce.

Objectives: To investigate the impact of AF on all-cause mortality in subjects with and without a thromboembolic event (VTE or ischemic stroke).

Atherosclerotic Risk Factors and Risk of Myocardial Infarction and Venous Thromboembolism; Time-Fixed versus Time-Varying Analyses. The Tromsø Study.

Background: Single measurements of modifiable risk factors may underestimate associations with outcomes in cohorts. We aimed to compare risk estimates of myocardial infarction (MI) and venous thromboembolism (VTE) by atherosclerotic risk factors during long follow-up using time-fixed analyses without and with correction for regression dilution and time-varying analyses.

Methods: The study included 5970 subjects enrolled in the fourth survey of the Tromsø Study (1994/95).