Relationship between diet and anticoagulant response to warfarin: a factor analysis.

Background: Diet composition is one of the factors that may contribute to intraindividual variability in the anticoagulant response to warfarin.

Aim Of The Study: To determine the associations between food pattern and anticoagulant response to warfarin in a group of Brazilian patients with vascular disease.

Methods: Recent and usual food intakes were assessed in 115 patients receiving warfarin; and corresponding plasma phylloquinone (vitamin K(1)), serum triglyceride concentrations, prothrombin time (PT), and International Normalized Ratio (INR) were determined.